f(x)=(x-4)(x-8i)

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Solution for f(x)=(x-4)(x-8i) equation:


Simplifying
f(x) = (x + -4)(x + -8i)

Multiply f * x
fx = (x + -4)(x + -8i)

Reorder the terms:
fx = (-4 + x)(x + -8i)

Reorder the terms:
fx = (-4 + x)(-8i + x)

Multiply (-4 + x) * (-8i + x)
fx = (-4(-8i + x) + x(-8i + x))
fx = ((-8i * -4 + x * -4) + x(-8i + x))
fx = ((32i + -4x) + x(-8i + x))
fx = (32i + -4x + (-8i * x + x * x))
fx = (32i + -4x + (-8ix + x2))

Reorder the terms:
fx = (32i + -8ix + -4x + x2)
fx = (32i + -8ix + -4x + x2)

Solving
fx = 32i + -8ix + -4x + x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 32ix-1 + -8i + -4 + x

Simplifying
f = 32ix-1 + -8i + -4 + x

Reorder the terms:
f = -4 + -8i + 32ix-1 + x

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