2x^2-18=54

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Solution for 2x^2-18=54 equation: 


Simplifying
2x2 + -18 = 54

Reorder the terms:
-18 + 2x2 = 54

Solving
-18 + 2x2 = 54

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + 2x2 = 54 + 18

Combine like terms: -18 + 18 = 0
0 + 2x2 = 54 + 18
2x2 = 54 + 18

Combine like terms: 54 + 18 = 72
2x2 = 72

Divide each side by '2'.
x2 = 36

Simplifying
x2 = 36

Take the square root of each side:
x = {-6, 6}

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