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Simplifying
4a2 + -147 = 9
Reorder the terms:
-147 + 4a2 = 9
Solving
-147 + 4a2 = 9
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '147' to each side of the equation.
-147 + 147 + 4a2 = 9 + 147
Combine like terms: -147 + 147 = 0
0 + 4a2 = 9 + 147
4a2 = 9 + 147
Combine like terms: 9 + 147 = 156
4a2 = 156
Divide each side by '4'.
a2 = 39
Simplifying
a2 = 39
Take the square root of each side:
a = {-6.244997998, 6.244997998}
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