-4-3r^2=-8

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Solution for -4-3r^2=-8 equation: 


Simplifying
-4 + -3r2 = -8

Solving
-4 + -3r2 = -8

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + -3r2 = -8 + 4

Combine like terms: -4 + 4 = 0
0 + -3r2 = -8 + 4
-3r2 = -8 + 4

Combine like terms: -8 + 4 = -4
-3r2 = -4

Divide each side by '-3'.
r2 = 1.333333333

Simplifying
r2 = 1.333333333

Take the square root of each side:
r = {-1.154700538, 1.154700538}

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