x^2-4+x^2-4+x^2-4=180

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Solution for x^2-4+x^2-4+x^2-4=180 equation: 


Simplifying
x2 + -4 + x2 + -4 + x2 + -4 = 180

Reorder the terms:
-4 + -4 + -4 + x2 + x2 + x2 = 180

Combine like terms: -4 + -4 = -8
-8 + -4 + x2 + x2 + x2 = 180

Combine like terms: -8 + -4 = -12
-12 + x2 + x2 + x2 = 180

Combine like terms: x2 + x2 = 2x2
-12 + 2x2 + x2 = 180

Combine like terms: 2x2 + x2 = 3x2
-12 + 3x2 = 180

Solving
-12 + 3x2 = 180

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 3x2 = 180 + 12

Combine like terms: -12 + 12 = 0
0 + 3x2 = 180 + 12
3x2 = 180 + 12

Combine like terms: 180 + 12 = 192
3x2 = 192

Divide each side by '3'.
x2 = 64

Simplifying
x2 = 64

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

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