(5-3i)(-4-6i)=0

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Solution for (5-3i)(-4-6i)=0 equation:


Simplifying
(5 + -3i)(-4 + -6i) = 0

Multiply (5 + -3i) * (-4 + -6i)
(5(-4 + -6i) + -3i * (-4 + -6i)) = 0
((-4 * 5 + -6i * 5) + -3i * (-4 + -6i)) = 0
((-20 + -30i) + -3i * (-4 + -6i)) = 0
(-20 + -30i + (-4 * -3i + -6i * -3i)) = 0
(-20 + -30i + (12i + 18i2)) = 0

Combine like terms: -30i + 12i = -18i
(-20 + -18i + 18i2) = 0

Solving
-20 + -18i + 18i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-10 + -9i + 9i2) = 0

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

Ignore the factor 2.

Subproblem 1

Set the factor '(-2 + -3i)' equal to zero and attempt to solve: Simplifying -2 + -3i = 0 Solving -2 + -3i = 0 Move all terms containing i to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -3i = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -3i = 0 + 2 -3i = 0 + 2 Combine like terms: 0 + 2 = 2 -3i = 2 Divide each side by '-3'. i = -0.6666666667 Simplifying i = -0.6666666667

Subproblem 2

Set the factor '(5 + -3i)' equal to zero and attempt to solve: Simplifying 5 + -3i = 0 Solving 5 + -3i = 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 + -3i = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3i = 0 + -5 -3i = 0 + -5 Combine like terms: 0 + -5 = -5 -3i = -5 Divide each side by '-3'. i = 1.666666667 Simplifying i = 1.666666667

Solution

i = {-0.6666666667, 1.666666667}

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