z^2-64=

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Solution for z^2-64= equation: 


Simplifying
z2 + -64 = 0

Reorder the terms:
-64 + z2 = 0

Solving
-64 + z2 = 0

Solving for variable 'z'.

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

Add '64' to each side of the equation.
-64 + 64 + z2 = 0 + 64

Combine like terms: -64 + 64 = 0
0 + z2 = 0 + 64
z2 = 0 + 64

Combine like terms: 0 + 64 = 64
z2 = 64

Simplifying
z2 = 64

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

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