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

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


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

Multiply (-6 + 2i) * (-2 + -5i)
(-6(-2 + -5i) + 2i * (-2 + -5i)) = 0
((-2 * -6 + -5i * -6) + 2i * (-2 + -5i)) = 0
((12 + 30i) + 2i * (-2 + -5i)) = 0
(12 + 30i + (-2 * 2i + -5i * 2i)) = 0
(12 + 30i + (-4i + -10i2)) = 0

Combine like terms: 30i + -4i = 26i
(12 + 26i + -10i2) = 0

Solving
12 + 26i + -10i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '2'.
2(6 + 13i + -5i2) = 0

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

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(2 + 5i)' equal to zero and attempt to solve: Simplifying 2 + 5i = 0 Solving 2 + 5i = 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 + 5i = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 5i = 0 + -2 5i = 0 + -2 Combine like terms: 0 + -2 = -2 5i = -2 Divide each side by '5'. i = -0.4 Simplifying i = -0.4

Solution

i = {3, -0.4}

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