(12-8i)(-4-1)=

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Solution for (12-8i)(-4-1)= equation:


Simplifying
(12 + -8i)(-4 + -1) = 0

Combine like terms: -4 + -1 = -5
(12 + -8i)(-5) = 0

Reorder the terms for easier multiplication:
-5(12 + -8i) = 0
(12 * -5 + -8i * -5) = 0
(-60 + 40i) = 0

Solving
-60 + 40i = 0

Solving for variable 'i'.

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

Add '60' to each side of the equation.
-60 + 60 + 40i = 0 + 60

Combine like terms: -60 + 60 = 0
0 + 40i = 0 + 60
40i = 0 + 60

Combine like terms: 0 + 60 = 60
40i = 60

Divide each side by '40'.
i = 1.5

Simplifying
i = 1.5

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