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Nairaland Forum / Nairaland / General / Education / Mathematicians, Please Help Me With These Quadratic Equations (28727 Views)
Mathematicians In The House come over Here / Please I Need Help In Balancing These Equations / How To Solve Any Quadratic Equation Using The "Almighty" Formula (2) (3) (4)
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Mathematicians, Please Help Me With These Quadratic Equations by sqlPAIN: 4:31pm On Jan 20, 2023 |
The first one has to be solved with the quadratic formula, I know how to solve it with other methods but when I use quadratic, I keep getting wrong answers..... The second one has to be solved with completing the square method.. 7 Likes 1 Share
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Re: Mathematicians, Please Help Me With These Quadratic Equations by ChinemeremFidel: 4:37pm On Jan 20, 2023 |
How much you go pay let me solve immediately 11 Likes 4 Shares |
Re: Mathematicians, Please Help Me With These Quadratic Equations by Chimaobi302(m): 5:23pm On Jan 20, 2023 |
(1) x²+2x-8=0 x²+4x-2x-8=0 x(x+4)-2(x+4)=0 (x-2)(x+4)=0 x=2 or x=-4 {x} = {2,-4}.... (2) x²-3x-18=0 x²+3x-6x-18=0 x(x+3)-6(x+3)=0 (x+3)(x-6)=0 x= -3 or x=6 { x } = {-3,6 } 425 Likes 39 Shares |
Re: Mathematicians, Please Help Me With These Quadratic Equations by sqlPAIN: 5:36pm On Jan 20, 2023 |
Chimaobi302:I know how to solve them like this, you solved them by factoring right? I said the first one should be solved with Quadratic formula a.k.a, Almighty formula .... While the second should be solved with Completing the square method ....Thanks though.... Anytime I use those two methods to solve the questions respectively, I always end up with the wrong answer. I just want someone to solyit using those methods so that I can study their solutions and figure out what I'm doing wrong. 25 Likes 3 Shares |
Re: Mathematicians, Please Help Me With These Quadratic Equations by NDSMELODY(m): 5:42pm On Jan 20, 2023 |
sqlPAIN:for completing the square method. 163 Likes 12 Shares
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Re: Mathematicians, Please Help Me With These Quadratic Equations by NDSMELODY(m): 5:48pm On Jan 20, 2023 |
sqlPAIN:Q3, using general formula 113 Likes 7 Shares
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Re: Mathematicians, Please Help Me With These Quadratic Equations by sqlPAIN: 5:50pm On Jan 20, 2023 |
NDSMELODY:Bro, I love you Honestly I feel like kissing you right now God bless you bro... Help me do the other one then drop your aza or phone number make I do you 1k or 1k sub. You just saved me from eternal confusion lol 132 Likes 8 Shares |
Re: Mathematicians, Please Help Me With These Quadratic Equations by sqlPAIN: 5:51pm On Jan 20, 2023 |
NDSMELODY:God bless you bro!!!!! 12 Likes |
Re: Mathematicians, Please Help Me With These Quadratic Equations by JohnnA1: 6:00pm On Jan 20, 2023 |
Nice thread; more of this. 31 Likes 3 Shares |
Re: Mathematicians, Please Help Me With These Quadratic Equations by NDSMELODY(m): 6:03pm On Jan 20, 2023 |
sqlPAIN:the second one has been solved up there bro. Account no; 0810077717 Bank; access bank. Thank you .... 117 Likes 6 Shares |
Re: Mathematicians, Please Help Me With These Quadratic Equations by NDSMELODY(m): 6:04pm On Jan 20, 2023 |
sqlPAIN:you are welcome bro 6 Likes |
Re: Mathematicians, Please Help Me With These Quadratic Equations by kingscare1(m): 6:20pm On Jan 20, 2023 |
X + X = ex or aids.... Write it down that's the right answer, forget those ones up there. I'm a professional maths lecturer, with PHD in maths and stats. 19 Likes 4 Shares |
Re: Mathematicians, Please Help Me With These Quadratic Equations by kingscare1(m): 6:21pm On Jan 20, 2023 |
X + X = ex or aids.... Write it down that's the right answer, forget those ones up there. I'm a professional maths lecturer, with PHD in maths and stats. |
Re: Mathematicians, Please Help Me With These Quadratic Equations by sqlPAIN: 6:33pm On Jan 20, 2023 |
NDSMELODY:Ok |
Re: Mathematicians, Please Help Me With These Quadratic Equations by Despacito1: 7:42pm On Jan 20, 2023 |
sqlPAIN:I just run it now, you can get the second yourself through this principle. I dey class I now no time to write the rest 15 Likes 2 Shares
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Re: Mathematicians, Please Help Me With These Quadratic Equations by michlins(m): 8:34pm On Jan 20, 2023 |
Omo Smart people full nairaland 49 Likes 3 Shares |
Re: Mathematicians, Please Help Me With These Quadratic Equations by Someodds: 9:55pm On Jan 20, 2023 |
AI got your number done. x = (-b ± √(b²-4ac)) / 2a Where a = 1, b = 2, and c = -8. so x = (-2 ± √(2²-41(-)) / 2*1 = (-2 ± √(4+32)) / 2 = (-2 ± √(36)) / 2 = (-2 ± 6) / 2 so x = (-2 + 6) / 2 = 4/2 = 2 or x = (-2 - 6) / 2 = -8/2 = -4 So the solutions are x = 2 and x = -4 18 Likes 1 Share |
Re: Mathematicians, Please Help Me With These Quadratic Equations by sureteeboy(m): 8:22am On Jan 21, 2023 |
NDSMELODY:Well done Bro. But you kept typing 'difference of two squares'. Difference of two squares wasn't utilized at any point in your solution 2 Likes 1 Share |
Re: Mathematicians, Please Help Me With These Quadratic Equations by NDSMELODY(m): 8:28am On Jan 21, 2023 |
sureteeboy:check the left hand side equation, you will see where I used difference of two square bro...check the workings very well !! 10 Likes 2 Shares |
Re: Mathematicians, Please Help Me With These Quadratic Equations by christejames(m): 9:14am On Jan 21, 2023 |
People wey get maths brain full ground ooo Whenever I see numbers in combination of alphabets and it's terms mathematical question , my brain will just go numb and fall into deep slumper ... Me and mathematics na two parallel lines. Just the day before yesterday, my neighbor brought me her daughter's first term mathematical examination questions for JSS3 to solve (from a Federal Technical College o)... O mehn! I collected it, thinking it will be baby questions of 1 + 1 ... I see alphabet and numbers my brain wan run comot for my head. , I said to myself, a graduate will not embarrass his generation like this biko because I can't return the paper to her unattended to. Thank God , a part of my brain was still left in my 'okpo skull' then I remembered my younger brother is studying at FUTO, na so I snap the questions and sent to him to help me out ooo ... The guy with his friends I presumed solved the questions and sent me the snap shots , na so I copy everything and passed across to my neighbor ooo ... Although I told her it was my younger brother that helped me out, . She was glad! 96 Likes 10 Shares |
Re: Mathematicians, Please Help Me With These Quadratic Equations by CodeTemplar: 9:36am On Jan 21, 2023 |
Primary four question in China. 1 Like |
Re: Mathematicians, Please Help Me With These Quadratic Equations by NDSMELODY(m): 10:43am On Jan 21, 2023 |
CodeTemplar:lols 2 Likes 1 Share |
Re: Mathematicians, Please Help Me With These Quadratic Equations by NDSMELODY(m): 10:43am On Jan 21, 2023 |
christejames:I can't stop laughing here bro, you tried ooo 28 Likes 1 Share |
Re: Mathematicians, Please Help Me With These Quadratic Equations by sureteeboy(m): 11:33am On Jan 21, 2023 |
NDSMELODY:This is Difference of two squares a²-b² = (a + b) (a - b) What you did on the left hand side was you factored the perfect square. You rewrote the trinomial on the LHS in the perfect square format. That's different from Difference of two squares 10 Likes |
Re: Mathematicians, Please Help Me With These Quadratic Equations by Houseofglam7(f): 12:01pm On Jan 21, 2023 |
👩🏽🦯👩🏽🦯👩🏽🦯👩🏽🦯 3 Likes 1 Share |
Re: Mathematicians, Please Help Me With These Quadratic Equations by Felabrity: 12:01pm On Jan 21, 2023 |
sqlPAIN:use calculator No stress me 1 Like 1 Share |
Re: Mathematicians, Please Help Me With These Quadratic Equations by hakeem4(m): 12:01pm On Jan 21, 2023 |
1) which becomes x=2 or−4 2) X= 6 or -3 |
Re: Mathematicians, Please Help Me With These Quadratic Equations by Lemmy123(m): 12:01pm On Jan 21, 2023 |
Na who chop belle full dey solve maths... Abeg guy check front, e choke for here 1 Like |
Re: Mathematicians, Please Help Me With These Quadratic Equations by MorataFC: 12:02pm On Jan 21, 2023 |
Ask the fellow behind me |
Re: Mathematicians, Please Help Me With These Quadratic Equations by BATified2023: 12:02pm On Jan 21, 2023 |
I want to implore Nigerians not to follow aba made fake product but the original tested n trusted man Imagine a man that made doctors go on strike for 13 months telling u he will do well in health sector? Isn’t it laughable Imagine a man who refuse to pay lecturers for good 6 months telling u he values education n to add insult on injury he increased ANSU tuition fee by 200% Isn’t it laughable? Imagine a man who fails to conduct local government election for good 7 years telling u he will deliver dividends of democracy to u, y didn’t he to that when he was governor? Imagine a man who can’t manage a majority Christian state n even had to start divide n rule between catholic n others Christian’s telling u he will unite u No b craze b dat? The same man who killed youths extrajudicially n dumped their bodies inside awkuzu river telling u he will protect the youth, Nigerians ronu He’s telling u he will move us from consumption to production but he’s the greatest importer of what his brothers are manufacturing locally Same man that claim he needs to b stingy by denying people dividends of democracy is stashing money into teenage daughter account n even have numerous offshore accounts The same man who said he wants to change d old order still romancing obj, ibb, enenche of endsars n the latest the billionaire grass cutter In Sowore voice…. A thief can’t fix your window This is what Owobokiri has to say about him then, ask him what has changed today? 5 Likes 2 Shares
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Re: Mathematicians, Please Help Me With These Quadratic Equations by Kyase(m): 12:04pm On Jan 21, 2023 |
sqlPAIN: Which one be almighty formula Its called the formula method Anyways person don solve am up there |
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