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Simplifying
2a2 + -2 + -13 = 2
Reorder the terms:
-2 + -13 + 2a2 = 2
Combine like terms: -2 + -13 = -15
-15 + 2a2 = 2
Solving
-15 + 2a2 = 2
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '15' to each side of the equation.
-15 + 15 + 2a2 = 2 + 15
Combine like terms: -15 + 15 = 0
0 + 2a2 = 2 + 15
2a2 = 2 + 15
Combine like terms: 2 + 15 = 17
2a2 = 17
Divide each side by '2'.
a2 = 8.5
Simplifying
a2 = 8.5
Take the square root of each side:
a = {-2.915475947, 2.915475947}
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