FreeStuffsNG:
2Rtx=Rt8
Rt8= Rt4 times Rt 2
Therefore 2Rtx=2Rt2 (because Rt4=2)
Divide both places by 2
Therefore Rtx= Rt2
Therefore x=2
Option a is the answer
Rt= Square root

Dogalmighty17:
You can see how useless mathematicians are abi? Even simple x they can't agree what the answer is. Some say 2 others say 4 and both are actually correct depending on what approach you use.

Ogurube:
2[sqrt(x)] = sqrt(
Divide both sides by sqrt(x):
—> 2 = sqrt(8/x)

Square both sides:
—>4 = 8/x
—>x = 8/4 = 2
—>x = 2

Stayingalive:
?? How both his answer and his method are wrong

Administration1:
57,000

Treadway:
√8 is not 4. That is the mistake in your math.

Another simple way is to do it is solve from the answer
√8 is √4 x √2 meaning 2√2

And you know 2√2 certainly means √2 + √2

The end.

Amah70:

In other words. square root of 8 is equal to square root of 2 + square root of 2? Which kain Additional Mathematics class taught you that?

Melagros:
COMRADES, we left secondary school over 15 years ago. So count us out

Antoeni:
Let Me Just Copy Somebody

noskcid:
If you solve am finish remember say mathematics no dey buy bread na money dey buy am
😠

uuzba:

Are you sure?
√2 + √2 = √8
1.414 + 1.414 = 2.828

Theama:
Not a mathematics(or physical science) student but...

√X + √X = √8

X^½ + X^½= 8^½

(note "^" is symbol for "raised to the power of"...)

2(X^½) = 8^½

X^½= (8^½)/(2)

X= (8^½)²/(2)²

X=8/4

X=2

I feel a little bit embarrassed forgetting how to use Surds form. Assume this to be method 2

At least, to God be the glory I arrived at an answer.

Verbtips:
sqrt x + sqrt x=sqrt 8
square both side
sqrt x)^2 + sqrtx)^2=sqrt8.)^2
square will cancel square root
then giving you a perfect equation
x+x=8
2x=8
divide both side by 2
=4
go back to the equation to check if the answer is correct
sub x for 4
4+4=8
if you think it is not correct then i will like to get advice from you

(Prove)

Amah70:

In other words. square root of 8 is equal to square root of 2 + square root of 2? Which kain Additional Mathematics class taught you that?

ManirBK:
What's the value of x?

Amah70:


Awuuuu. 2.828 × 2.828 = 7.997...

uuzba:

√8 = √2 + √2
2.828 = 1.414 + 1.414

What's the problem again?
The guy is right.
Learn your maths.

uuzba:

Would you prefer that i fill up the whole internet with the infinite number of decimal places
for the √2 just to make my point.
That's why algebra exists.
Working with functions and logic not with digits.

Amah70:

1.414 × 1.414 is not equal to square root of 2.

Melagros:
COMRADES, we left secondary school over 15 years ago. So count us out

Amah70:


You don't do approximations in a situation like this. Precision is required.

Stayingalive:

Wrong
Squaring the left side gives
x^(1/2 *2) + x^(1/2 *2) + x^(1/2 *2) + x^(1/2 *2)
x + x + x + x
4x

and the
4x =8
x = 8/4
x = 2

uuzba:


I don't get you
And you've written wrong numbers and equation.
Look carefully at what I wrote.
There's something called dyslexia.
It's a condition where someone's eyes are shifting up and down the place
And can't focus clearly.
Some people have it but they don't know.
They can't focus on + - x ÷
And consequently, fail maths. Then go around blaming the whole world instead.

Treadway:
dis guy sef🤣🤣🤣🤣🤣

NwaNimo1:
Square everything.......

then: x+x=8;

2x=8;

therefore x=4

Amah70:



8 has no square root. No round figure is equal to square root of 8.

Fcuck off from cracking people's brain. I have tried putting 16 in place of X, no dice.

Habbeyy:
√x + √x =√8
2√x =√4 × √2
2√x = 2 × √2
2√x = 2√2
Divide both sides by 2
2√x / 2 = 2√2 / 2
√x=√2
Square both sides
(√x)²=(√2)²
Hence, x=2
Cc ManirBK