a^2+4a^2=361

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Solution for a^2+4a^2=361 equation: 


Simplifying
a2 + 4a2 = 361

Combine like terms: a2 + 4a2 = 5a2
5a2 = 361

Solving
5a2 = 361

Solving for variable 'a'.

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

Divide each side by '5'.
a2 = 72.2

Simplifying
a2 = 72.2

Take the square root of each side:
a = {-8.497058314, 8.497058314}

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