x^2(8x+7)(8x-7)=0

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Solution for x^2(8x+7)(8x-7)=0 equation: 


Simplifying
x2(8x + 7)(8x + -7) = 0

Reorder the terms:
x2(7 + 8x)(8x + -7) = 0

Reorder the terms:
x2(7 + 8x)(-7 + 8x) = 0

Multiply (7 + 8x) * (-7 + 8x)
x2(7(-7 + 8x) + 8x * (-7 + 8x)) = 0
x2((-7 * 7 + 8x * 7) + 8x * (-7 + 8x)) = 0
x2((-49 + 56x) + 8x * (-7 + 8x)) = 0
x2(-49 + 56x + (-7 * 8x + 8x * 8x)) = 0
x2(-49 + 56x + (-56x + 64x2)) = 0

Combine like terms: 56x + -56x = 0
x2(-49 + 0 + 64x2) = 0
x2(-49 + 64x2) = 0
(-49 * x2 + 64x2 * x2) = 0
(-49x2 + 64x4) = 0

Solving
-49x2 + 64x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x2'.
x2(-49 + 64x2) = 0

Factor a difference between two squares.
x2((7 + 8x)(-7 + 8x)) = 0


Subproblem 1
Set the factor 'x2' equal to zero and attempt to solve:

Simplifying
x2 = 0

Solving
x2 = 0

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

Simplifying
x2 = 0

Take the square root of each side:
x = {0}

Subproblem 2
Set the factor '(7 + 8x)' equal to zero and attempt to solve:

Simplifying
7 + 8x = 0

Solving
7 + 8x = 0

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

Add '-7' to each side of the equation.
7 + -7 + 8x = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 8x = 0 + -7
8x = 0 + -7

Combine like terms: 0 + -7 = -7
8x = -7

Divide each side by '8'.
x = -0.875

Simplifying
x = -0.875

Subproblem 3
Set the factor '(-7 + 8x)' equal to zero and attempt to solve:

Simplifying
-7 + 8x = 0

Solving
-7 + 8x = 0

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

Add '7' to each side of the equation.
-7 + 7 + 8x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 8x = 0 + 7
8x = 0 + 7

Combine like terms: 0 + 7 = 7
8x = 7

Divide each side by '8'.
x = 0.875

Simplifying
x = 0.875
Solution
x = {0, -0.875, 0.875}

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