x^2+x^2=720

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Solution for x^2+x^2=720 equation: 


Simplifying
x2 + x2 = 720

Combine like terms: x2 + x2 = 2x2
2x2 = 720

Solving
2x2 = 720

Solving for variable 'x'.

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

Divide each side by '2'.
x2 = 360

Simplifying
x2 = 360

Take the square root of each side:
x = {-18.973665961, 18.973665961}

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