Question

4y2=256 Find the value for y

Answer 1

4y2=256
4 x 2 = 8
256 divided by 8
Y=32

Answer 2

So, We Have:
$4y^{2} = 256$
We Need To Solve.
Lets Start By Finding the Square Root Of 256.
$4y = \sqrt{256} \\ We\ Know\ That\ \sqrt{256} = 16. So,\ The\ Equation\ Becomes:\\ 4y = 16\\ Divide\ Both\ Sides\ By\ 4.\\ y = 16/4\\ 16/4 = 4,\ So:\\ Y = 4\\ Check:\\ 4*4 ^{2} = 256\\ 4*4 = 16.\\ 16^{2} = 256\\ 256 = 256\\ This\ Is\ True.\ So,\ y = 4.$