8z^2+4=516

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Solution for 8z^2+4=516 equation: 


Simplifying
8z2 + 4 = 516

Reorder the terms:
4 + 8z2 = 516

Solving
4 + 8z2 = 516

Solving for variable 'z'.

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

Add '-4' to each side of the equation.
4 + -4 + 8z2 = 516 + -4

Combine like terms: 4 + -4 = 0
0 + 8z2 = 516 + -4
8z2 = 516 + -4

Combine like terms: 516 + -4 = 512
8z2 = 512

Divide each side by '8'.
z2 = 64

Simplifying
z2 = 64

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

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