(16x+9)(16x-9)=

Solution for (16x+9)(16x-9)= equation:

Simplifying
(16x + 9)(16x + -9) = 0

Reorder the terms:
(9 + 16x)(16x + -9) = 0

Reorder the terms:
(9 + 16x)(-9 + 16x) = 0

Multiply (9 + 16x) * (-9 + 16x)
(9(-9 + 16x) + 16x * (-9 + 16x)) = 0
((-9 * 9 + 16x * 9) + 16x * (-9 + 16x)) = 0
((-81 + 144x) + 16x * (-9 + 16x)) = 0
(-81 + 144x + (-9 * 16x + 16x * 16x)) = 0
(-81 + 144x + (-144x + 256x2)) = 0

Combine like terms: 144x + -144x = 0
(-81 + 0 + 256x2) = 0
(-81 + 256x2) = 0

Solving
-81 + 256x2 = 0

Solving for variable 'x'.

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

Add '81' to each side of the equation.
-81 + 81 + 256x2 = 0 + 81

Combine like terms: -81 + 81 = 0
0 + 256x2 = 0 + 81
256x2 = 0 + 81

Combine like terms: 0 + 81 = 81
256x2 = 81

Divide each side by '256'.
x2 = 0.31640625

Simplifying
x2 = 0.31640625

Take the square root of each side:
x = {-0.5625, 0.5625}