12a^2-75=

Solution for 12a^2-75= equation:

Simplifying
12a2 + -75 = 0

Reorder the terms:
-75 + 12a2 = 0

Solving
-75 + 12a2 = 0

Solving for variable 'a'.

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

Add '75' to each side of the equation.
-75 + 75 + 12a2 = 0 + 75

Combine like terms: -75 + 75 = 0
0 + 12a2 = 0 + 75
12a2 = 0 + 75

Combine like terms: 0 + 75 = 75
12a2 = 75

Divide each side by '12'.
a2 = 6.25

Simplifying
a2 = 6.25

Take the square root of each side:
a = {-2.5, 2.5}