(x+7i)(x-7i)(x+3)=0

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Solution for (x+7i)(x-7i)(x+3)=0 equation:


Simplifying
(x + 7i)(x + -7i)(x + 3) = 0

Reorder the terms:
(7i + x)(x + -7i)(x + 3) = 0

Reorder the terms:
(7i + x)(-7i + x)(x + 3) = 0

Reorder the terms:
(7i + x)(-7i + x)(3 + x) = 0

Multiply (7i + x) * (-7i + x)
(7i * (-7i + x) + x(-7i + x))(3 + x) = 0
((-7i * 7i + x * 7i) + x(-7i + x))(3 + x) = 0

Reorder the terms:
((7ix + -49i2) + x(-7i + x))(3 + x) = 0
((7ix + -49i2) + x(-7i + x))(3 + x) = 0
(7ix + -49i2 + (-7i * x + x * x))(3 + x) = 0
(7ix + -49i2 + (-7ix + x2))(3 + x) = 0

Reorder the terms:
(7ix + -7ix + -49i2 + x2)(3 + x) = 0

Combine like terms: 7ix + -7ix = 0
(0 + -49i2 + x2)(3 + x) = 0
(-49i2 + x2)(3 + x) = 0

Multiply (-49i2 + x2) * (3 + x)
(-49i2 * (3 + x) + x2(3 + x)) = 0
((3 * -49i2 + x * -49i2) + x2(3 + x)) = 0
((-147i2 + -49i2x) + x2(3 + x)) = 0
(-147i2 + -49i2x + (3 * x2 + x * x2)) = 0
(-147i2 + -49i2x + (3x2 + x3)) = 0
(-147i2 + -49i2x + 3x2 + x3) = 0

Solving
-147i2 + -49i2x + 3x2 + x3 = 0

Solving for variable 'i'.

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

Add '-3x2' to each side of the equation.
-147i2 + -49i2x + 3x2 + -3x2 + x3 = 0 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-147i2 + -49i2x + 0 + x3 = 0 + -3x2
-147i2 + -49i2x + x3 = 0 + -3x2
Remove the zero:
-147i2 + -49i2x + x3 = -3x2

Add '-1x3' to each side of the equation.
-147i2 + -49i2x + x3 + -1x3 = -3x2 + -1x3

Combine like terms: x3 + -1x3 = 0
-147i2 + -49i2x + 0 = -3x2 + -1x3
-147i2 + -49i2x = -3x2 + -1x3

Reorder the terms:
-147i2 + -49i2x + 3x2 + x3 = -3x2 + 3x2 + -1x3 + x3

Combine like terms: -3x2 + 3x2 = 0
-147i2 + -49i2x + 3x2 + x3 = 0 + -1x3 + x3
-147i2 + -49i2x + 3x2 + x3 = -1x3 + x3

Combine like terms: -1x3 + x3 = 0
-147i2 + -49i2x + 3x2 + x3 = 0

The solution to this equation could not be determined.

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