(x+iy)(x-iy)=1989

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Solution for (x+iy)(x-iy)=1989 equation:


Simplifying
(x + iy)(x + -1iy) = 1989

Reorder the terms:
(iy + x)(x + -1iy) = 1989

Reorder the terms:
(iy + x)(-1iy + x) = 1989

Multiply (iy + x) * (-1iy + x)
(iy(-1iy + x) + x(-1iy + x)) = 1989
((-1iy * iy + x * iy) + x(-1iy + x)) = 1989

Reorder the terms:
((ixy + -1i2y2) + x(-1iy + x)) = 1989
((ixy + -1i2y2) + x(-1iy + x)) = 1989
(ixy + -1i2y2 + (-1iy * x + x * x)) = 1989
(ixy + -1i2y2 + (-1ixy + x2)) = 1989

Reorder the terms:
(ixy + -1ixy + -1i2y2 + x2) = 1989

Combine like terms: ixy + -1ixy = 0
(0 + -1i2y2 + x2) = 1989
(-1i2y2 + x2) = 1989

Solving
-1i2y2 + x2 = 1989

Solving for variable 'i'.

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

Add '-1x2' to each side of the equation.
-1i2y2 + x2 + -1x2 = 1989 + -1x2

Combine like terms: x2 + -1x2 = 0
-1i2y2 + 0 = 1989 + -1x2
-1i2y2 = 1989 + -1x2

Divide each side by '-1y2'.
i2 = -1989y-2 + x2y-2

Simplifying
i2 = -1989y-2 + x2y-2

Reorder the terms:
i2 = x2y-2 + -1989y-2

Reorder the terms:
i2 + -1x2y-2 + 1989y-2 = x2y-2 + -1x2y-2 + -1989y-2 + 1989y-2

Combine like terms: x2y-2 + -1x2y-2 = 0
i2 + -1x2y-2 + 1989y-2 = 0 + -1989y-2 + 1989y-2
i2 + -1x2y-2 + 1989y-2 = -1989y-2 + 1989y-2

Combine like terms: -1989y-2 + 1989y-2 = 0
i2 + -1x2y-2 + 1989y-2 = 0

The solution to this equation could not be determined.

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