(-6+2i)(-5-4i)=0

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Solution for (-6+2i)(-5-4i)=0 equation:


Simplifying
(-6 + 2i)(-5 + -4i) = 0

Multiply (-6 + 2i) * (-5 + -4i)
(-6(-5 + -4i) + 2i * (-5 + -4i)) = 0
((-5 * -6 + -4i * -6) + 2i * (-5 + -4i)) = 0
((30 + 24i) + 2i * (-5 + -4i)) = 0
(30 + 24i + (-5 * 2i + -4i * 2i)) = 0
(30 + 24i + (-10i + -8i2)) = 0

Combine like terms: 24i + -10i = 14i
(30 + 14i + -8i2) = 0

Solving
30 + 14i + -8i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '2'.
2(15 + 7i + -4i2) = 0

Factor a trinomial.
2((3 + -1i)(5 + 4i)) = 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 '(5 + 4i)' equal to zero and attempt to solve: Simplifying 5 + 4i = 0 Solving 5 + 4i = 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 + 4i = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 4i = 0 + -5 4i = 0 + -5 Combine like terms: 0 + -5 = -5 4i = -5 Divide each side by '4'. i = -1.25 Simplifying i = -1.25

Solution

i = {3, -1.25}

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