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

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


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

Multiply (6 + -4i) * (-4 + 5i)
(6(-4 + 5i) + -4i * (-4 + 5i)) = 0
((-4 * 6 + 5i * 6) + -4i * (-4 + 5i)) = 0
((-24 + 30i) + -4i * (-4 + 5i)) = 0
(-24 + 30i + (-4 * -4i + 5i * -4i)) = 0
(-24 + 30i + (16i + -20i2)) = 0

Combine like terms: 30i + 16i = 46i
(-24 + 46i + -20i2) = 0

Solving
-24 + 46i + -20i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-12 + 23i + -10i2) = 0

Factor a trinomial.
2((-3 + 2i)(4 + -5i)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-3 + 2i)' equal to zero and attempt to solve: Simplifying -3 + 2i = 0 Solving -3 + 2i = 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 + 2i = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 2i = 0 + 3 2i = 0 + 3 Combine like terms: 0 + 3 = 3 2i = 3 Divide each side by '2'. i = 1.5 Simplifying i = 1.5

Subproblem 2

Set the factor '(4 + -5i)' equal to zero and attempt to solve: Simplifying 4 + -5i = 0 Solving 4 + -5i = 0 Move all terms containing i to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -5i = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -5i = 0 + -4 -5i = 0 + -4 Combine like terms: 0 + -4 = -4 -5i = -4 Divide each side by '-5'. i = 0.8 Simplifying i = 0.8

Solution

i = {1.5, 0.8}

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