(x+4)(x-4)(x+4i)(x-4i)=0

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Solution for (x+4)(x-4)(x+4i)(x-4i)=0 equation:


Simplifying
(x + 4)(x + -4)(x + 4i)(x + -4i) = 0

Reorder the terms:
(4 + x)(x + -4)(x + 4i)(x + -4i) = 0

Reorder the terms:
(4 + x)(-4 + x)(x + 4i)(x + -4i) = 0

Reorder the terms:
(4 + x)(-4 + x)(4i + x)(x + -4i) = 0

Reorder the terms:
(4 + x)(-4 + x)(4i + x)(-4i + x) = 0

Multiply (4 + x) * (-4 + x)
(4(-4 + x) + x(-4 + x))(4i + x)(-4i + x) = 0
((-4 * 4 + x * 4) + x(-4 + x))(4i + x)(-4i + x) = 0
((-16 + 4x) + x(-4 + x))(4i + x)(-4i + x) = 0
(-16 + 4x + (-4 * x + x * x))(4i + x)(-4i + x) = 0
(-16 + 4x + (-4x + x2))(4i + x)(-4i + x) = 0

Combine like terms: 4x + -4x = 0
(-16 + 0 + x2)(4i + x)(-4i + x) = 0
(-16 + x2)(4i + x)(-4i + x) = 0

Multiply (-16 + x2) * (4i + x)
(-16(4i + x) + x2(4i + x))(-4i + x) = 0
((4i * -16 + x * -16) + x2(4i + x))(-4i + x) = 0
((-64i + -16x) + x2(4i + x))(-4i + x) = 0
(-64i + -16x + (4i * x2 + x * x2))(-4i + x) = 0
(-64i + -16x + (4ix2 + x3))(-4i + x) = 0

Reorder the terms:
(-64i + 4ix2 + -16x + x3)(-4i + x) = 0
(-64i + 4ix2 + -16x + x3)(-4i + x) = 0

Multiply (-64i + 4ix2 + -16x + x3) * (-4i + x)
(-64i * (-4i + x) + 4ix2 * (-4i + x) + -16x * (-4i + x) + x3(-4i + x)) = 0
((-4i * -64i + x * -64i) + 4ix2 * (-4i + x) + -16x * (-4i + x) + x3(-4i + x)) = 0

Reorder the terms:
((-64ix + 256i2) + 4ix2 * (-4i + x) + -16x * (-4i + x) + x3(-4i + x)) = 0
((-64ix + 256i2) + 4ix2 * (-4i + x) + -16x * (-4i + x) + x3(-4i + x)) = 0
(-64ix + 256i2 + (-4i * 4ix2 + x * 4ix2) + -16x * (-4i + x) + x3(-4i + x)) = 0

Reorder the terms:
(-64ix + 256i2 + (4ix3 + -16i2x2) + -16x * (-4i + x) + x3(-4i + x)) = 0
(-64ix + 256i2 + (4ix3 + -16i2x2) + -16x * (-4i + x) + x3(-4i + x)) = 0
(-64ix + 256i2 + 4ix3 + -16i2x2 + (-4i * -16x + x * -16x) + x3(-4i + x)) = 0
(-64ix + 256i2 + 4ix3 + -16i2x2 + (64ix + -16x2) + x3(-4i + x)) = 0
(-64ix + 256i2 + 4ix3 + -16i2x2 + 64ix + -16x2 + (-4i * x3 + x * x3)) = 0
(-64ix + 256i2 + 4ix3 + -16i2x2 + 64ix + -16x2 + (-4ix3 + x4)) = 0

Reorder the terms:
(-64ix + 64ix + 4ix3 + -4ix3 + 256i2 + -16i2x2 + -16x2 + x4) = 0

Combine like terms: -64ix + 64ix = 0
(0 + 4ix3 + -4ix3 + 256i2 + -16i2x2 + -16x2 + x4) = 0
(4ix3 + -4ix3 + 256i2 + -16i2x2 + -16x2 + x4) = 0

Combine like terms: 4ix3 + -4ix3 = 0
(0 + 256i2 + -16i2x2 + -16x2 + x4) = 0
(256i2 + -16i2x2 + -16x2 + x4) = 0

Solving
256i2 + -16i2x2 + -16x2 + x4 = 0

Solving for variable 'i'.

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

Add '16x2' to each side of the equation.
256i2 + -16i2x2 + -16x2 + 16x2 + x4 = 0 + 16x2

Combine like terms: -16x2 + 16x2 = 0
256i2 + -16i2x2 + 0 + x4 = 0 + 16x2
256i2 + -16i2x2 + x4 = 0 + 16x2
Remove the zero:
256i2 + -16i2x2 + x4 = 16x2

Add '-1x4' to each side of the equation.
256i2 + -16i2x2 + x4 + -1x4 = 16x2 + -1x4

Combine like terms: x4 + -1x4 = 0
256i2 + -16i2x2 + 0 = 16x2 + -1x4
256i2 + -16i2x2 = 16x2 + -1x4

Reorder the terms:
256i2 + -16i2x2 + -16x2 + x4 = 16x2 + -16x2 + -1x4 + x4

Combine like terms: 16x2 + -16x2 = 0
256i2 + -16i2x2 + -16x2 + x4 = 0 + -1x4 + x4
256i2 + -16i2x2 + -16x2 + x4 = -1x4 + x4

Combine like terms: -1x4 + x4 = 0
256i2 + -16i2x2 + -16x2 + x4 = 0

The solution to this equation could not be determined.

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