8x^2+64=-72x

Solution for 8x^2+64=-72x equation:

Simplifying
8x2 + 64 = -72x

Reorder the terms:
64 + 8x2 = -72x

Solving
64 + 8x2 = -72x

Solving for variable 'x'.

Reorder the terms:
64 + 72x + 8x2 = -72x + 72x

Combine like terms: -72x + 72x = 0
64 + 72x + 8x2 = 0

Factor out the Greatest Common Factor (GCF), '8'.
8(8 + 9x + x2) = 0

Factor a trinomial.
8((8 + x)(1 + x)) = 0

Ignore the factor 8.
Subproblem 1
Set the factor '(8 + x)' equal to zero and attempt to solve:

Simplifying
8 + x = 0

Solving
8 + x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-8' to each side of the equation.
8 + -8 + x = 0 + -8

Combine like terms: 8 + -8 = 0
0 + x = 0 + -8
x = 0 + -8

Combine like terms: 0 + -8 = -8
x = -8

Simplifying
x = -8
Subproblem 2
Set the factor '(1 + x)' equal to zero and attempt to solve:

Simplifying
1 + x = 0

Solving
1 + x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + x = 0 + -1
x = 0 + -1

Combine like terms: 0 + -1 = -1
x = -1

Simplifying
x = -1
Solution
x = {-8, -1}