a*2a=18

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Solution for a*2a=18 equation: 


Simplifying
a * 2a = 18

Reorder the terms for easier multiplication:
2a * a = 18

Multiply a * a
2a2 = 18

Solving
2a2 = 18

Solving for variable 'a'.

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

Divide each side by '2'.
a2 = 9

Simplifying
a2 = 9

Take the square root of each side:
a = {-3, 3}

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