=x^2-xy+4x-4y

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Solution for =x^2-xy+4x-4y equation:


Simplifying
0 = x2 + -1xy + 4x + -4y

Reorder the terms:
0 = 4x + -1xy + x2 + -4y

Solving
0 = 4x + -1xy + x2 + -4y

Solving for variable 'x'.
Remove the zero:
-4x + xy + -1x2 + 4y = 4x + -1xy + x2 + -4y + -4x + xy + -1x2 + 4y

Reorder the terms:
-4x + xy + -1x2 + 4y = 4x + -4x + -1xy + xy + x2 + -1x2 + -4y + 4y

Combine like terms: 4x + -4x = 0
-4x + xy + -1x2 + 4y = 0 + -1xy + xy + x2 + -1x2 + -4y + 4y
-4x + xy + -1x2 + 4y = -1xy + xy + x2 + -1x2 + -4y + 4y

Combine like terms: -1xy + xy = 0
-4x + xy + -1x2 + 4y = 0 + x2 + -1x2 + -4y + 4y
-4x + xy + -1x2 + 4y = x2 + -1x2 + -4y + 4y

Combine like terms: x2 + -1x2 = 0
-4x + xy + -1x2 + 4y = 0 + -4y + 4y
-4x + xy + -1x2 + 4y = -4y + 4y

Combine like terms: -4y + 4y = 0
-4x + xy + -1x2 + 4y = 0

The solution to this equation could not be determined.

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