(-5-4i)(5-6i)=

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Solution for (-5-4i)(5-6i)= equation:


Simplifying
(-5 + -4i)(5 + -6i) = 0

Multiply (-5 + -4i) * (5 + -6i)
(-5(5 + -6i) + -4i * (5 + -6i)) = 0
((5 * -5 + -6i * -5) + -4i * (5 + -6i)) = 0
((-25 + 30i) + -4i * (5 + -6i)) = 0
(-25 + 30i + (5 * -4i + -6i * -4i)) = 0
(-25 + 30i + (-20i + 24i2)) = 0

Combine like terms: 30i + -20i = 10i
(-25 + 10i + 24i2) = 0

Solving
-25 + 10i + 24i2 = 0

Solving for variable 'i'.

Factor a trinomial.
(-5 + -4i)(5 + -6i) = 0

Subproblem 1

Set the factor '(-5 + -4i)' equal to zero and attempt to solve: Simplifying -5 + -4i = 0 Solving -5 + -4i = 0 Move all terms containing i to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -4i = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -4i = 0 + 5 -4i = 0 + 5 Combine like terms: 0 + 5 = 5 -4i = 5 Divide each side by '-4'. i = -1.25 Simplifying i = -1.25

Subproblem 2

Set the factor '(5 + -6i)' equal to zero and attempt to solve: Simplifying 5 + -6i = 0 Solving 5 + -6i = 0 Move all terms containing i to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -6i = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -6i = 0 + -5 -6i = 0 + -5 Combine like terms: 0 + -5 = -5 -6i = -5 Divide each side by '-6'. i = 0.8333333333 Simplifying i = 0.8333333333

Solution

i = {-1.25, 0.8333333333}

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