(7x-8)(7x+8)=

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

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

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

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

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

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

Solving
-64 + 49x2 = 0

Solving for variable 'x'.

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

Add '64' to each side of the equation.
-64 + 64 + 49x2 = 0 + 64

Combine like terms: -64 + 64 = 0
0 + 49x2 = 0 + 64
49x2 = 0 + 64

Combine like terms: 0 + 64 = 64
49x2 = 64

Divide each side by '49'.
x2 = 1.306122449

Simplifying
x2 = 1.306122449

Take the square root of each side:
x = {-1.142857143, 1.142857143}