x^2+x^2=80

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Solution for x^2+x^2=80 equation: 


Simplifying
x2 + x2 = 80

Combine like terms: x2 + x2 = 2x2
2x2 = 80

Solving
2x2 = 80

Solving for variable 'x'.

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

Divide each side by '2'.
x2 = 40

Simplifying
x2 = 40

Take the square root of each side:
x = {-6.32455532, 6.32455532}

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