20-45x^2=0

Solution for 20-45x^2=0 equation:

Simplifying
20 + -45x2 = 0

Solving
20 + -45x2 = 0

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + -45x2 = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -45x2 = 0 + -20
-45x2 = 0 + -20

Combine like terms: 0 + -20 = -20
-45x2 = -20

Divide each side by '-45'.
x2 = 0.4444444444

Simplifying
x2 = 0.4444444444

Take the square root of each side:
x = {-0.666666667, 0.666666667}