4x*4x-16=0

Solution for 4x*4x-16=0 equation:

Simplifying
4x * 4x + -16 = 0

Reorder the terms for easier multiplication:
4 * 4x * x + -16 = 0

Multiply 4 * 4
16x * x + -16 = 0

Multiply x * x
16x2 + -16 = 0

Reorder the terms:
-16 + 16x2 = 0

Solving
-16 + 16x2 = 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 + 16x2 = 0 + 16

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

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

Divide each side by '16'.
x2 = 1

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}