x^2+4x^2=77

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Solution for x^2+4x^2=77 equation: 


Simplifying
x2 + 4x2 = 77

Combine like terms: x2 + 4x2 = 5x2
5x2 = 77

Solving
5x2 = 77

Solving for variable 'x'.

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

Divide each side by '5'.
x2 = 15.4

Simplifying
x2 = 15.4

Take the square root of each side:
x = {-3.924283374, 3.924283374}

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