-20m^2+9=0

Solution for -20m^2+9=0 equation:

Simplifying
-20m2 + 9 = 0

Reorder the terms:
9 + -20m2 = 0

Solving
9 + -20m2 = 0

Solving for variable 'm'.

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

Add '-9' to each side of the equation.
9 + -9 + -20m2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -20m2 = 0 + -9
-20m2 = 0 + -9

Combine like terms: 0 + -9 = -9
-20m2 = -9

Divide each side by '-20'.
m2 = 0.45

Simplifying
m2 = 0.45

Take the square root of each side:
m = {-0.670820393, 0.670820393}