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Simplifying
3a2 + 8 = 65
Reorder the terms:
8 + 3a2 = 65
Solving
8 + 3a2 = 65
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '-8' to each side of the equation.
8 + -8 + 3a2 = 65 + -8
Combine like terms: 8 + -8 = 0
0 + 3a2 = 65 + -8
3a2 = 65 + -8
Combine like terms: 65 + -8 = 57
3a2 = 57
Divide each side by '3'.
a2 = 19
Simplifying
a2 = 19
Take the square root of each side:
a = {-4.358898944, 4.358898944}
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