2x^2-38=90

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Solution for 2x^2-38=90 equation: 


Simplifying
2x2 + -38 = 90

Reorder the terms:
-38 + 2x2 = 90

Solving
-38 + 2x2 = 90

Solving for variable 'x'.

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

Add '38' to each side of the equation.
-38 + 38 + 2x2 = 90 + 38

Combine like terms: -38 + 38 = 0
0 + 2x2 = 90 + 38
2x2 = 90 + 38

Combine like terms: 90 + 38 = 128
2x2 = 128

Divide each side by '2'.
x2 = 64

Simplifying
x2 = 64

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

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