-3x^2+8=-40

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Solution for -3x^2+8=-40 equation: 


Simplifying
-3x2 + 8 = -40

Reorder the terms:
8 + -3x2 = -40

Solving
8 + -3x2 = -40

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 + -3x2 = -40 + -8

Combine like terms: 8 + -8 = 0
0 + -3x2 = -40 + -8
-3x2 = -40 + -8

Combine like terms: -40 + -8 = -48
-3x2 = -48

Divide each side by '-3'.
x2 = 16

Simplifying
x2 = 16

Take the square root of each side:
x = {-4, 4}

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