(x*x)+(x*x)=36

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Solution for (x*x)+(x*x)=36 equation: 


Simplifying
(x * x) + (x * x) = 36

Multiply x * x
(x2) + (x * x) = 36
x2 + (x * x) = 36

Multiply x * x
x2 + (x2) = 36
x2 + x2 = 36

Combine like terms: x2 + x2 = 2x2
2x2 = 36

Solving
2x2 = 36

Solving for variable 'x'.

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

Divide each side by '2'.
x2 = 18

Simplifying
x2 = 18

Take the square root of each side:
x = {-4.242640687, 4.242640687}

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