40-2x^2=0

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Solution for 40-2x^2=0 equation: 


Simplifying
40 + -2x2 = 0

Solving
40 + -2x2 = 0

Solving for variable 'x'.

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

Add '-40' to each side of the equation.
40 + -40 + -2x2 = 0 + -40

Combine like terms: 40 + -40 = 0
0 + -2x2 = 0 + -40
-2x2 = 0 + -40

Combine like terms: 0 + -40 = -40
-2x2 = -40

Divide each side by '-2'.
x2 = 20

Simplifying
x2 = 20

Take the square root of each side:
x = {-4.472135955, 4.472135955}

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