(x+3i)(x-3i)(x-9)=0

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Solution for (x+3i)(x-3i)(x-9)=0 equation: 


Simplifying
(x + 3i)(x + -3i)(x + -9) = 0

Reorder the terms:
(3i + x)(x + -3i)(x + -9) = 0

Reorder the terms:
(3i + x)(-3i + x)(x + -9) = 0

Reorder the terms:
(3i + x)(-3i + x)(-9 + x) = 0

Multiply (3i + x) * (-3i + x)
(3i * (-3i + x) + x(-3i + x))(-9 + x) = 0
((-3i * 3i + x * 3i) + x(-3i + x))(-9 + x) = 0

Reorder the terms:
((3ix + -9i2) + x(-3i + x))(-9 + x) = 0
((3ix + -9i2) + x(-3i + x))(-9 + x) = 0
(3ix + -9i2 + (-3i * x + x * x))(-9 + x) = 0
(3ix + -9i2 + (-3ix + x2))(-9 + x) = 0

Reorder the terms:
(3ix + -3ix + -9i2 + x2)(-9 + x) = 0

Combine like terms: 3ix + -3ix = 0
(0 + -9i2 + x2)(-9 + x) = 0
(-9i2 + x2)(-9 + x) = 0

Multiply (-9i2 + x2) * (-9 + x)
(-9i2 * (-9 + x) + x2(-9 + x)) = 0
((-9 * -9i2 + x * -9i2) + x2(-9 + x)) = 0
((81i2 + -9i2x) + x2(-9 + x)) = 0
(81i2 + -9i2x + (-9 * x2 + x * x2)) = 0
(81i2 + -9i2x + (-9x2 + x3)) = 0
(81i2 + -9i2x + -9x2 + x3) = 0

Solving
81i2 + -9i2x + -9x2 + x3 = 0

Solving for variable 'i'.

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

Add '9x2' to each side of the equation.
81i2 + -9i2x + -9x2 + 9x2 + x3 = 0 + 9x2

Combine like terms: -9x2 + 9x2 = 0
81i2 + -9i2x + 0 + x3 = 0 + 9x2
81i2 + -9i2x + x3 = 0 + 9x2
Remove the zero:
81i2 + -9i2x + x3 = 9x2

Add '-1x3' to each side of the equation.
81i2 + -9i2x + x3 + -1x3 = 9x2 + -1x3

Combine like terms: x3 + -1x3 = 0
81i2 + -9i2x + 0 = 9x2 + -1x3
81i2 + -9i2x = 9x2 + -1x3

Reorder the terms:
81i2 + -9i2x + -9x2 + x3 = 9x2 + -9x2 + -1x3 + x3

Combine like terms: 9x2 + -9x2 = 0
81i2 + -9i2x + -9x2 + x3 = 0 + -1x3 + x3
81i2 + -9i2x + -9x2 + x3 = -1x3 + x3

Combine like terms: -1x3 + x3 = 0
81i2 + -9i2x + -9x2 + x3 = 0

The solution to this equation could not be determined.

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