3-5x^2=-77

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Solution for 3-5x^2=-77 equation: 


Simplifying
3 + -5x2 = -77

Solving
3 + -5x2 = -77

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + -5x2 = -77 + -3

Combine like terms: 3 + -3 = 0
0 + -5x2 = -77 + -3
-5x2 = -77 + -3

Combine like terms: -77 + -3 = -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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