8a^2-18=

Solution for 8a^2-18= equation:

Simplifying
8a2 + -18 = 0

Reorder the terms:
-18 + 8a2 = 0

Solving
-18 + 8a2 = 0

Solving for variable 'a'.

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

Add '18' to each side of the equation.
-18 + 18 + 8a2 = 0 + 18

Combine like terms: -18 + 18 = 0
0 + 8a2 = 0 + 18
8a2 = 0 + 18

Combine like terms: 0 + 18 = 18
8a2 = 18

Divide each side by '8'.
a2 = 2.25

Simplifying
a2 = 2.25

Take the square root of each side:
a = {-1.5, 1.5}