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

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


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

Multiply (5 + 2i) * (-6 + -6i)
(5(-6 + -6i) + 2i * (-6 + -6i)) = 0
((-6 * 5 + -6i * 5) + 2i * (-6 + -6i)) = 0
((-30 + -30i) + 2i * (-6 + -6i)) = 0
(-30 + -30i + (-6 * 2i + -6i * 2i)) = 0
(-30 + -30i + (-12i + -12i2)) = 0

Combine like terms: -30i + -12i = -42i
(-30 + -42i + -12i2) = 0

Solving
-30 + -42i + -12i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '-6'.
-6(5 + 7i + 2i2) = 0

Factor a trinomial.
-6((5 + 2i)(1 + i)) = 0

Ignore the factor -6.

Subproblem 1

Set the factor '(5 + 2i)' equal to zero and attempt to solve: Simplifying 5 + 2i = 0 Solving 5 + 2i = 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 + 2i = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 2i = 0 + -5 2i = 0 + -5 Combine like terms: 0 + -5 = -5 2i = -5 Divide each side by '2'. i = -2.5 Simplifying i = -2.5

Subproblem 2

Set the factor '(1 + i)' equal to zero and attempt to solve: Simplifying 1 + i = 0 Solving 1 + i = 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 + i = 0 + -1 Combine like terms: 1 + -1 = 0 0 + i = 0 + -1 i = 0 + -1 Combine like terms: 0 + -1 = -1 i = -1 Simplifying i = -1

Solution

i = {-2.5, -1}

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