-5x^2+80=0

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


Simplifying
-5x2 + 80 = 0

Reorder the terms:
80 + -5x2 = 0

Solving
80 + -5x2 = 0

Solving for variable 'x'.

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

Add '-80' to each side of the equation.
80 + -80 + -5x2 = 0 + -80

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

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

Divide each side by '-5'.
x2 = 16

Simplifying
x2 = 16

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

 

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