2x*x+7=520

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Solution for 2x*x+7=520 equation: 


Simplifying
2x * x + 7 = 520

Multiply x * x
2x2 + 7 = 520

Reorder the terms:
7 + 2x2 = 520

Solving
7 + 2x2 = 520

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 2x2 = 520 + -7

Combine like terms: 7 + -7 = 0
0 + 2x2 = 520 + -7
2x2 = 520 + -7

Combine like terms: 520 + -7 = 513
2x2 = 513

Divide each side by '2'.
x2 = 256.5

Simplifying
x2 = 256.5

Take the square root of each side:
x = {-16.015617378, 16.015617378}

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