(-x-2i)(x-2i)=-x^2-4

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Solution for (-x-2i)(x-2i)=-x^2-4 equation:


Simplifying
(-1x + -2i)(x + -2i) = -1x2 + -4

Reorder the terms:
(-2i + -1x)(x + -2i) = -1x2 + -4

Reorder the terms:
(-2i + -1x)(-2i + x) = -1x2 + -4

Multiply (-2i + -1x) * (-2i + x)
(-2i * (-2i + x) + -1x * (-2i + x)) = -1x2 + -4
((-2i * -2i + x * -2i) + -1x * (-2i + x)) = -1x2 + -4

Reorder the terms:
((-2ix + 4i2) + -1x * (-2i + x)) = -1x2 + -4
((-2ix + 4i2) + -1x * (-2i + x)) = -1x2 + -4
(-2ix + 4i2 + (-2i * -1x + x * -1x)) = -1x2 + -4
(-2ix + 4i2 + (2ix + -1x2)) = -1x2 + -4

Reorder the terms:
(-2ix + 2ix + 4i2 + -1x2) = -1x2 + -4

Combine like terms: -2ix + 2ix = 0
(0 + 4i2 + -1x2) = -1x2 + -4
(4i2 + -1x2) = -1x2 + -4

Reorder the terms:
4i2 + -1x2 = -4 + -1x2

Add 'x2' to each side of the equation.
4i2 + -1x2 + x2 = -4 + -1x2 + x2

Combine like terms: -1x2 + x2 = 0
4i2 + 0 = -4 + -1x2 + x2
4i2 = -4 + -1x2 + x2

Combine like terms: -1x2 + x2 = 0
4i2 = -4 + 0
4i2 = -4

Solving
4i2 = -4

Solving for variable 'i'.

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

Divide each side by '4'.
i2 = -1

Simplifying
i2 = -1

Reorder the terms:
1 + i2 = -1 + 1

Combine like terms: -1 + 1 = 0
1 + i2 = 0

The solution to this equation could not be determined.

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