a^2+8=72

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Solution for a^2+8=72 equation: 


Simplifying
a2 + 8 = 72

Reorder the terms:
8 + a2 = 72

Solving
8 + a2 = 72

Solving for variable 'a'.

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

Add '-8' to each side of the equation.
8 + -8 + a2 = 72 + -8

Combine like terms: 8 + -8 = 0
0 + a2 = 72 + -8
a2 = 72 + -8

Combine like terms: 72 + -8 = 64
a2 = 64

Simplifying
a2 = 64

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

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