2a^2-1-13=2

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Solution for 2a^2-1-13=2 equation: 


Simplifying
2a2 + -1 + -13 = 2

Reorder the terms:
-1 + -13 + 2a2 = 2

Combine like terms: -1 + -13 = -14
-14 + 2a2 = 2

Solving
-14 + 2a2 = 2

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '14' to each side of the equation.
-14 + 14 + 2a2 = 2 + 14

Combine like terms: -14 + 14 = 0
0 + 2a2 = 2 + 14
2a2 = 2 + 14

Combine like terms: 2 + 14 = 16
2a2 = 16

Divide each side by '2'.
a2 = 8

Simplifying
a2 = 8

Take the square root of each side:
a = {-2.828427125, 2.828427125}

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