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Nairaland Forum / Nairaland / General / Education / Nairaland Mathematicians, Please Come And Help Me Solve This (1534 Views)
Mathematicians, Please Help Me With These Quadratic Equations / Nairaland Mathematicians And Physicists, Come And Try This. / Please Help Me Solve This Book 4 Quantitative Reasoning Problem (2) (3) (4)
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by Bam17(f): 12:40am On Jan 17, 2023 |
Spare124: You're welcome Whenever you see X, just know it's the box I'm talking about. Anyone can check if I'm correct... just in case I made a mistake while hurrying. Got exams. Wish me luck 1 Share
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Re: Nairaland Mathematicians, Please Come And Help Me Solve This by NaijaphiliaBlog: 1:55am On Jan 17, 2023 |
The error was in the last step of the calculation i.e. - 2/X = - 1/2 is correct, but cross-multiplying will give - X = - 4 i.e. both sides of the equation are negative. Thus we need a last step to multiply both sides by minus 1 i.e. -1(- X) =-1( - 4 ) X = 4 MIRACULOUS123: 1 Like |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by sqlPAIN: 2:22am On Jan 17, 2023 |
steeltrust:no vex naa bro Na how you take convert the question to quadratic equation dey surprise me because I don't understand how you got two answers and the worst part come be say no of them correct |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by eastgates1: 2:40am On Jan 17, 2023 |
The answer is 4. 1/x +1/2 =3/x Subtract the 3/x from both sides 1/x + 1/2 - 3/x = 0 Look for the LCM of the denominators Which gives 2x. Our equation now becomes 2+x-6 = 0 ______ 2x Cross multiply the denominator with 0. It now becomes 2+ x - 6=0 Collect like terms X +2-6 =0 X-4 =0 X=4 1 Like |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by Chaos14: 6:59am On Jan 17, 2023 |
don4real:Collect like terms and cross multiply |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by Chaos14: 7:01am On Jan 17, 2023 |
Drrnie:Collect like terms then cross multiply |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by steeltrust: 8:20am On Jan 17, 2023 |
sqlPAIN:you no say for warri we de form say we too know No be our fault Over sabi de worry us |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by padyt007(m): 8:29am On Jan 17, 2023 |
This solution is correct steeltrust: |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by JOACHINpedro: 8:39am On Jan 17, 2023 |
FromZeroToHero:Lol, What is 0/x? |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by FromZeroToHero(m): 9:02am On Jan 17, 2023 |
JOACHINpedro: Same thing as 0/100= 0. |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by JOACHINpedro: 9:03am On Jan 17, 2023 |
FromZeroToHero:I don't think you were meant to divide such factorised expression by x, the division is not correct. |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by FromZeroToHero(m): 9:05am On Jan 17, 2023 |
JOACHINpedro: That's the beauty of mathematics. You can use different methods and still arrive at the same answer. |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by JOACHINpedro: 9:11am On Jan 17, 2023 |
FromZeroToHero:x(x-4)=0 Dividing the two sides by x is not correct because of (x-4) |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by jidepopeson: 9:30am On Jan 17, 2023 |
Absolute bunkum! steeltrust: |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by FromZeroToHero(m): 10:15am On Jan 17, 2023 |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by jeromestarks: 10:32am On Jan 17, 2023 |
Goodlady:You're chicken. Put 2 in the equation and see if it's true. |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by PARADIZEPRIEST: 11:16am On Jan 17, 2023 |
1/x + 1/2=3/x 1/x - 3/x=-1/2 -2/x= -1/2 -2/x. X x/1= -1/2 X x/1 -2= -x/2 -2 X 2 = -x -4. = -x 4=x Therefore x=4 QED This is just a simple equation. ABEG IF YOU ARE NO MATHEMATICIAN DON'T COME HERE AND WRITE WETIN YOU NO SABI. because THE THING WEY YOU NO KNOW SENIOR YOU. 1 Like |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by PARADIZEPRIEST: 11:29am On Jan 17, 2023 |
steeltrust:Haa! O boy where you get all these raise to power,na wa o! Just look and learn maths,and stop this esoteric you are writing here. 2 Likes |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by CountryTireMan(m): 11:34am On Jan 17, 2023 |
Easy
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Re: Nairaland Mathematicians, Please Come And Help Me Solve This by Abuventure: 1:19pm On Jan 17, 2023 |
. |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by Abuventure: 1:21pm On Jan 17, 2023 |
This is the answer.
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Re: Nairaland Mathematicians, Please Come And Help Me Solve This by ghettochild(m): 9:07am On Jan 18, 2023 |
steeltrust:Uncle where ur 3/x disappeared to |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by ghettochild(m): 9:09am On Jan 18, 2023 |
Spare124:. In my days.. these things were straightforward but nowadays na complex ones oooo . .u will need to write it out n then be doing... add or subtract two from both sides.. But those days...we do the straightforward calculations in our heads |
Re: Nairaland Mathematicians, Please Come And Help Me Solve This by steeltrust: 12:22pm On Jan 18, 2023 |
ghettochild:e de irabiji |
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