z^2-729=0

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Solution for z^2-729=0 equation: 


Simplifying
z2 + -729 = 0

Reorder the terms:
-729 + z2 = 0

Solving
-729 + z2 = 0

Solving for variable 'z'.

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

Add '729' to each side of the equation.
-729 + 729 + z2 = 0 + 729

Combine like terms: -729 + 729 = 0
0 + z2 = 0 + 729
z2 = 0 + 729

Combine like terms: 0 + 729 = 729
z2 = 729

Simplifying
z2 = 729

Take the square root of each side:
z = {-27, 27}

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