2x^2+8=28

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Solution for 2x^2+8=28 equation: 


Simplifying
2x2 + 8 = 28

Reorder the terms:
8 + 2x2 = 28

Solving
8 + 2x2 = 28

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 = 28 + -8

Combine like terms: 8 + -8 = 0
0 + 2x2 = 28 + -8
2x2 = 28 + -8

Combine like terms: 28 + -8 = 20
2x2 = 20

Divide each side by '2'.
x2 = 10

Simplifying
x2 = 10

Take the square root of each side:
x = {-3.16227766, 3.16227766}

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