Help Me With This Quadratic Equation - Education

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Help Me With This Quadratic Equation - Education - Nairaland

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Mathematicians, Please Help Me With These Quadratic Equations / How To Solve Any Quadratic Equation Using The "Almighty" Formula / Q13 Quadratic Equation WAEC Maths 2019 Past Questions And Answers | FREE VIDEOS (2) (3) (4)

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Help Me With This Quadratic Equation by Mide1data: 8:43pm On Oct 18, 2022

(X-5/2)^2=25/4
Abeg with details.

1 Like

Re: Help Me With This Quadratic Equation by sunjai(f): 9:51pm On Oct 18, 2022

(×-5/2)^2 = 25/4
×-5/2 = √25/4
X-5/2 = 5/2
X = 5/2 + 5/2
X = 10/2
X = 5

6 Likes 1 Share

Re: Help Me With This Quadratic Equation by snowball11(m): 10:42pm On Oct 18, 2022

(×-5/2)^2 = 25/4
Take the square root of both sides
×-5/2 = √25/4
X-5/2 = +_5/2
X = 5/2 +_ 5/2
Either X = 5/2 + 5/2 or X 5/2 - 5/2

X = 10/2 or X = 0

X = 5 or X = 0

3 Likes

Re: Help Me With This Quadratic Equation by Davidekop: 10:50pm On Oct 18, 2022

(X-5/2)^2=25/4 (2X-5/2)^2=25/4 2X-5/2=5/2 2(2X-5)=2×5 4X-10=10 4X=10+10 4X=20 X=20/4 X=5.

2 Likes

Re: Help Me With This Quadratic Equation by phemmyfour: 5:21am On Oct 19, 2022

sunjai:
(×-5/2)^2 = 25/4
×-5/2 = √25/4
X-5/2 = 5/2
X = 5/2 + 5/2
X = 10/2
X = 5

You are partially right. You should be having two solutions

You omitted plus or minus before the square root.

Hence the other root should be X = 5/2-5/2
= 0

2 Likes 1 Share

Re: Help Me With This Quadratic Equation by phemmyfour: 5:23am On Oct 19, 2022

snowball11:
(×-5/2)^2 = 25/4
Take the square root of both sides
×-5/2 = √25/4
X-5/2 = +_5/2
X = 5/2 +_ 5/2
Either X = 5/2 + 5/2 or X 5/2 - 5/2

X = 10/2 or X = 0

X = 5 or X = 0

You are absolutely correct.

The degree of the polynomial determines the number of solutions an equation has. The quadratic equation always has two solutions of the variables

3 Likes

Re: Help Me With This Quadratic Equation by beautyhd: 5:33am On Oct 19, 2022

I left the chat.

2 Likes

Re: Help Me With This Quadratic Equation by ImmaculateJOE(m): 7:25am On Oct 19, 2022

Is this really a quadratic equation.

Because on a normal, quadratic equation comes with two unknown variables. (x&y). But I'm just seeing x..

Re: Help Me With This Quadratic Equation by phemmyfour: 7:52am On Oct 19, 2022

ImmaculateJOE:
Is this really a quadratic equation.

Because on a normal, quadratic equation comes with two unknown variables. (x&y). But I'm just seeing x..

I weep for your maths teacher

3 Likes

Re: Help Me With This Quadratic Equation by Zonefree(m): 8:53am On Oct 19, 2022

beautyhd:
I left the chat.

Itiboribo.

1 Like

Re: Help Me With This Quadratic Equation by ImmaculateJOE(m): 9:06am On Oct 19, 2022

phemmyfour:
I weep for your maths teacher

You can help to clarify and not to insult..

Re: Help Me With This Quadratic Equation by FromZeroToHero(m): 10:15am On Oct 19, 2022

See it here

Re: Help Me With This Quadratic Equation by Nobody: 11:37am On Oct 19, 2022

Make man try some math small. As I dey blast my weed. Lest I forget this is an equation not a quadratic equation

1 Like 1 Share

Re: Help Me With This Quadratic Equation by Nobody: 11:47am On Oct 19, 2022

snowball11:
(×-5/2)^2 = 25/4
Take the square root of both sides
×-5/2 = √25/4
X-5/2 = +_5/2
X = 5/2 +_ 5/2
Either X = 5/2 + 5/2 or X 5/2 - 5/2

X = 10/2 or X = 0

X = 5 or X = 0

You are wrong sir

Re: Help Me With This Quadratic Equation by sunjai(f): 12:10pm On Oct 19, 2022

phemmyfour:
You are partially right. You should be having two solutions

You omitted plus or minus before the square root.

Hence the other root should be X = 5/2-5/2
= 0

yea true. It's been ages I solved mathematics

Re: Help Me With This Quadratic Equation by Mide1data: 6:12pm On Oct 19, 2022

sunjai:
(×-5/2)^2 = 25/4
×-5/2 = √25/4
X-5/2 = 5/2
X = 5/2 + 5/2
X = 10/2
X = 5

Thanks. But yot 4got quadratic equation should have +/- plus or minus, also it should have two answers

Re: Help Me With This Quadratic Equation by Mide1data: 6:12pm On Oct 19, 2022

snowball11:
(×-5/2)^2 = 25/4 Take the square root of both sides ×-5/2 = √25/4 X-5/2 = +_5/2 X = 5/2 +_ 5/2 Either X = 5/2 + 5/2 or X 5/2 - 5/2
X = 10/2 or X = 0
X = 5 or X = 0

Thanks.

Re: Help Me With This Quadratic Equation by snowball11(m): 9:28pm On Oct 19, 2022

Mide1data:

Thanks.

My pleasure!

Re: Help Me With This Quadratic Equation by Tboy222: 9:40pm On Oct 19, 2022

phemmyfour:
I weep for your maths teacher

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