4x^2+8=72

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Solution for 4x^2+8=72 equation: 


Simplifying
4x2 + 8 = 72

Reorder the terms:
8 + 4x2 = 72

Solving
8 + 4x2 = 72

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 4x2 = 72 + -8

Combine like terms: 8 + -8 = 0
0 + 4x2 = 72 + -8
4x2 = 72 + -8

Combine like terms: 72 + -8 = 64
4x2 = 64

Divide each side by '4'.
x2 = 16

Simplifying
x2 = 16

Take the square root of each side:
x = {-4, 4}

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