(3x-4)(3x+4)=

Solution for (3x-4)(3x+4)= equation:

Simplifying
(3x + -4)(3x + 4) = 0

Reorder the terms:
(-4 + 3x)(3x + 4) = 0

Reorder the terms:
(-4 + 3x)(4 + 3x) = 0

Multiply (-4 + 3x) * (4 + 3x)
(-4(4 + 3x) + 3x * (4 + 3x)) = 0
((4 * -4 + 3x * -4) + 3x * (4 + 3x)) = 0
((-16 + -12x) + 3x * (4 + 3x)) = 0
(-16 + -12x + (4 * 3x + 3x * 3x)) = 0
(-16 + -12x + (12x + 9x2)) = 0

Combine like terms: -12x + 12x = 0
(-16 + 0 + 9x2) = 0
(-16 + 9x2) = 0

Solving
-16 + 9x2 = 0

Solving for variable 'x'.

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

Add '16' to each side of the equation.
-16 + 16 + 9x2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 9x2 = 0 + 16
9x2 = 0 + 16

Combine like terms: 0 + 16 = 16
9x2 = 16

Divide each side by '9'.
x2 = 1.777777778

Simplifying
x2 = 1.777777778

Take the square root of each side:
x = {-1.333333333, 1.333333333}