X*X-Y*Y=840

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Solution for X*X-Y*Y=840 equation:


Simplifying
X * X + -1Y * Y = 840

Multiply X * X
X2 + -1Y * Y = 840

Multiply Y * Y
X2 + -1Y2 = 840

Solving
X2 + -1Y2 = 840

Solving for variable 'X'.

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

Add 'Y2' to each side of the equation.
X2 + -1Y2 + Y2 = 840 + Y2

Combine like terms: -1Y2 + Y2 = 0
X2 + 0 = 840 + Y2
X2 = 840 + Y2

Simplifying
X2 = 840 + Y2

Reorder the terms:
-840 + X2 + -1Y2 = 840 + Y2 + -840 + -1Y2

Reorder the terms:
-840 + X2 + -1Y2 = 840 + -840 + Y2 + -1Y2

Combine like terms: 840 + -840 = 0
-840 + X2 + -1Y2 = 0 + Y2 + -1Y2
-840 + X2 + -1Y2 = Y2 + -1Y2

Combine like terms: Y2 + -1Y2 = 0
-840 + X2 + -1Y2 = 0

The solution to this equation could not be determined.

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