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Simplifying
4a2 = 60
Solving
4a2 = 60
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Divide each side by '4'.
a2 = 15
Simplifying
a2 = 15
Take the square root of each side:
a = {-3.872983346, 3.872983346}
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