Y=(x+8)(x+8)

Solution for Y=(x+8)(x+8) equation:

=(Y+8)(Y+8)

We move all terms to the left:

-((Y+8)(Y+8))=0

We multiply parentheses ..

-((+Y^2+8Y+8Y+64))=0


We calculate terms in parentheses: -((+Y^2+8Y+8Y+64)), so:

(+Y^2+8Y+8Y+64)

We get rid of parentheses

Y^2+8Y+8Y+64

We add all the numbers together, and all the variables

Y^2+16Y+64

Back to the equation:

-(Y^2+16Y+64)


We get rid of parentheses

-Y^2-16Y-64=0

We add all the numbers together, and all the variables

-1Y^2-16Y-64=0

a = -1; b = -16; c = -64;
Δ = b2-4ac
Δ = -162-4·(-1)·(-64)
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$Y=\frac{-b}{2a}=\frac{16}{-2}=-8$