X*X+Y*Y=13

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Solution for X*X+Y*Y=13 equation: 


Simplifying
X * X + Y * Y = 13

Multiply X * X
X2 + Y * Y = 13

Multiply Y * Y
X2 + Y2 = 13

Solving
X2 + Y2 = 13

Solving for variable 'X'.

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

Add '-1Y2' to each side of the equation.
X2 + Y2 + -1Y2 = 13 + -1Y2

Combine like terms: Y2 + -1Y2 = 0
X2 + 0 = 13 + -1Y2
X2 = 13 + -1Y2

Simplifying
X2 = 13 + -1Y2

Reorder the terms:
-13 + X2 + Y2 = 13 + -1Y2 + -13 + Y2

Reorder the terms:
-13 + X2 + Y2 = 13 + -13 + -1Y2 + Y2

Combine like terms: 13 + -13 = 0
-13 + X2 + Y2 = 0 + -1Y2 + Y2
-13 + X2 + Y2 = -1Y2 + Y2

Combine like terms: -1Y2 + Y2 = 0
-13 + X2 + Y2 = 0

The solution to this equation could not be determined.

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