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

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


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

Multiply (-6 + -3i) * (5 + 6i)
(-6(5 + 6i) + -3i * (5 + 6i)) = 0
((5 * -6 + 6i * -6) + -3i * (5 + 6i)) = 0
((-30 + -36i) + -3i * (5 + 6i)) = 0
(-30 + -36i + (5 * -3i + 6i * -3i)) = 0
(-30 + -36i + (-15i + -18i2)) = 0

Combine like terms: -36i + -15i = -51i
(-30 + -51i + -18i2) = 0

Solving
-30 + -51i + -18i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '-3'.
-3(10 + 17i + 6i2) = 0

Factor a trinomial.
-3((2 + i)(5 + 6i)) = 0

Ignore the factor -3.

Subproblem 1

Set the factor '(2 + i)' equal to zero and attempt to solve: Simplifying 2 + i = 0 Solving 2 + i = 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 + i = 0 + -2 Combine like terms: 2 + -2 = 0 0 + i = 0 + -2 i = 0 + -2 Combine like terms: 0 + -2 = -2 i = -2 Simplifying i = -2

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 = {-2, -0.8333333333}

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