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Simplifying
2a2 + -10 = 18
Reorder the terms:
-10 + 2a2 = 18
Solving
-10 + 2a2 = 18
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '10' to each side of the equation.
-10 + 10 + 2a2 = 18 + 10
Combine like terms: -10 + 10 = 0
0 + 2a2 = 18 + 10
2a2 = 18 + 10
Combine like terms: 18 + 10 = 28
2a2 = 28
Divide each side by '2'.
a2 = 14
Simplifying
a2 = 14
Take the square root of each side:
a = {-3.741657387, 3.741657387}
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