20x^4-45a^2=

Solution for 20x^4-45a^2= equation:

Simplifying
20x4 + -45a2 = 0

Reorder the terms:
-45a2 + 20x4 = 0

Solving
-45a2 + 20x4 = 0

Solving for variable 'a'.

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

Add '-20x4' to each side of the equation.
-45a2 + 20x4 + -20x4 = 0 + -20x4

Combine like terms: 20x4 + -20x4 = 0
-45a2 + 0 = 0 + -20x4
-45a2 = 0 + -20x4
Remove the zero:
-45a2 = -20x4

Divide each side by '-45'.
a2 = 0.4444444444x4

Simplifying
a2 = 0.4444444444x4

Take the square root of each side:
a = {-0.666666667x2, 0.666666667x2}