2x^2+8=56

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Solution for 2x^2+8=56 equation: 


Simplifying
2x2 + 8 = 56

Reorder the terms:
8 + 2x2 = 56

Solving
8 + 2x2 = 56

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 + 2x2 = 56 + -8

Combine like terms: 8 + -8 = 0
0 + 2x2 = 56 + -8
2x2 = 56 + -8

Combine like terms: 56 + -8 = 48
2x2 = 48

Divide each side by '2'.
x2 = 24

Simplifying
x2 = 24

Take the square root of each side:
x = {-4.898979486, 4.898979486}

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