144-81x^2=

Solution for 144-81x^2= equation:

Simplifying
144 + -81x2 = 0

Solving
144 + -81x2 = 0

Solving for variable 'x'.

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

Add '-144' to each side of the equation.
144 + -144 + -81x2 = 0 + -144

Combine like terms: 144 + -144 = 0
0 + -81x2 = 0 + -144
-81x2 = 0 + -144

Combine like terms: 0 + -144 = -144
-81x2 = -144

Divide each side by '-81'.
x2 = 1.777777778

Simplifying
x2 = 1.777777778

Take the square root of each side:
x = {-1.333333333, 1.333333333}