2a^2-128=0

Solution for 2a^2-128=0 equation:

Simplifying
2a2 + -128 = 0

Reorder the terms:
-128 + 2a2 = 0

Solving
-128 + 2a2 = 0

Solving for variable 'a'.

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

Add '128' to each side of the equation.
-128 + 128 + 2a2 = 0 + 128

Combine like terms: -128 + 128 = 0
0 + 2a2 = 0 + 128
2a2 = 0 + 128

Combine like terms: 0 + 128 = 128
2a2 = 128

Divide each side by '2'.
a2 = 64

Simplifying
a2 = 64

Take the square root of each side:
a = {-8, 8}