4a^2-36+81=

Solution for 4a^2-36+81= equation:

Simplifying
4a2 + -36 + 81 = 0

Reorder the terms:
-36 + 81 + 4a2 = 0

Combine like terms: -36 + 81 = 45
45 + 4a2 = 0

Solving
45 + 4a2 = 0

Solving for variable 'a'.

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

Add '-45' to each side of the equation.
45 + -45 + 4a2 = 0 + -45

Combine like terms: 45 + -45 = 0
0 + 4a2 = 0 + -45
4a2 = 0 + -45

Combine like terms: 0 + -45 = -45
4a2 = -45

Divide each side by '4'.
a2 = -11.25

Simplifying
a2 = -11.25

Reorder the terms:
11.25 + a2 = -11.25 + 11.25

Combine like terms: -11.25 + 11.25 = 0.00
11.25 + a2 = 0.00

The solution to this equation could not be determined.