5x^2-40+80=0

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Solution for 5x^2-40+80=0 equation:


Simplifying
5x2 + -40 + 80 = 0

Reorder the terms:
-40 + 80 + 5x2 = 0

Combine like terms: -40 + 80 = 40
40 + 5x2 = 0

Solving
40 + 5x2 = 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 + 5x2 = 0 + -40

Combine like terms: 40 + -40 = 0
0 + 5x2 = 0 + -40
5x2 = 0 + -40

Combine like terms: 0 + -40 = -40
5x2 = -40

Divide each side by '5'.
x2 = -8

Simplifying
x2 = -8

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

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

The solution to this equation could not be determined.

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