(-5+4i)(2+6i)=

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Solution for (-5+4i)(2+6i)= equation:


Simplifying
(-5 + 4i)(2 + 6i) = 0

Multiply (-5 + 4i) * (2 + 6i)
(-5(2 + 6i) + 4i * (2 + 6i)) = 0
((2 * -5 + 6i * -5) + 4i * (2 + 6i)) = 0
((-10 + -30i) + 4i * (2 + 6i)) = 0
(-10 + -30i + (2 * 4i + 6i * 4i)) = 0
(-10 + -30i + (8i + 24i2)) = 0

Combine like terms: -30i + 8i = -22i
(-10 + -22i + 24i2) = 0

Solving
-10 + -22i + 24i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-5 + -11i + 12i2) = 0

Factor a trinomial.
2((-1 + -3i)(5 + -4i)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-1 + -3i)' equal to zero and attempt to solve: Simplifying -1 + -3i = 0 Solving -1 + -3i = 0 Move all terms containing i to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -3i = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -3i = 0 + 1 -3i = 0 + 1 Combine like terms: 0 + 1 = 1 -3i = 1 Divide each side by '-3'. i = -0.3333333333 Simplifying i = -0.3333333333

Subproblem 2

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

Solution

i = {-0.3333333333, 1.25}

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