y=y2/8

Solution for y=y2/8 equation:

y=y2/8

We move all terms to the left:

y-(y2/8)=0

We add all the numbers together, and all the variables

y-(+y2/8)=0

We get rid of parentheses

y-y2/8=0

We multiply all the terms by the denominator


y*8-y2=0

We add all the numbers together, and all the variables

-1y^2+y*8=0

Wy multiply elements

-1y^2+8y=0

a = -1; b = 8; c = 0;
Δ = b2-4ac
Δ = 82-4·(-1)·0
Δ = 64
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{64}=8$
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(8)-8}{2*-1}=\frac{-16}{-2}
=+8
$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(8)+8}{2*-1}=\frac{0}{-2}
=0
$