7-5x^2=-213

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Solution for 7-5x^2=-213 equation: 


Simplifying
7 + -5x2 = -213

Solving
7 + -5x2 = -213

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + -5x2 = -213 + -7

Combine like terms: 7 + -7 = 0
0 + -5x2 = -213 + -7
-5x2 = -213 + -7

Combine like terms: -213 + -7 = -220
-5x2 = -220

Divide each side by '-5'.
x2 = 44

Simplifying
x2 = 44

Take the square root of each side:
x = {-6.633249581, 6.633249581}

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