(-2-6i)(6+7i)=

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Solution for (-2-6i)(6+7i)= equation:


Simplifying
(-2 + -6i)(6 + 7i) = 0

Multiply (-2 + -6i) * (6 + 7i)
(-2(6 + 7i) + -6i * (6 + 7i)) = 0
((6 * -2 + 7i * -2) + -6i * (6 + 7i)) = 0
((-12 + -14i) + -6i * (6 + 7i)) = 0
(-12 + -14i + (6 * -6i + 7i * -6i)) = 0
(-12 + -14i + (-36i + -42i2)) = 0

Combine like terms: -14i + -36i = -50i
(-12 + -50i + -42i2) = 0

Solving
-12 + -50i + -42i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '-2'.
-2(6 + 25i + 21i2) = 0

Factor a trinomial.
-2((6 + 7i)(1 + 3i)) = 0

Ignore the factor -2.

Subproblem 1

Set the factor '(6 + 7i)' equal to zero and attempt to solve: Simplifying 6 + 7i = 0 Solving 6 + 7i = 0 Move all terms containing i to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + 7i = 0 + -6 Combine like terms: 6 + -6 = 0 0 + 7i = 0 + -6 7i = 0 + -6 Combine like terms: 0 + -6 = -6 7i = -6 Divide each side by '7'. i = -0.8571428571 Simplifying i = -0.8571428571

Subproblem 2

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

Solution

i = {-0.8571428571, -0.3333333333}

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