-8a^2-72=0

Solution for -8a^2-72=0 equation:

Simplifying
-8a2 + -72 = 0

Reorder the terms:
-72 + -8a2 = 0

Solving
-72 + -8a2 = 0

Solving for variable 'a'.

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

Add '72' to each side of the equation.
-72 + 72 + -8a2 = 0 + 72

Combine like terms: -72 + 72 = 0
0 + -8a2 = 0 + 72
-8a2 = 0 + 72

Combine like terms: 0 + 72 = 72
-8a2 = 72

Divide each side by '-8'.
a2 = -9

Simplifying
a2 = -9

Reorder the terms:
9 + a2 = -9 + 9

Combine like terms: -9 + 9 = 0
9 + a2 = 0

The solution to this equation could not be determined.