(6-8i)(9+2i)=

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Solution for (6-8i)(9+2i)= equation:


Simplifying
(6 + -8i)(9 + 2i) = 0

Multiply (6 + -8i) * (9 + 2i)
(6(9 + 2i) + -8i * (9 + 2i)) = 0
((9 * 6 + 2i * 6) + -8i * (9 + 2i)) = 0
((54 + 12i) + -8i * (9 + 2i)) = 0
(54 + 12i + (9 * -8i + 2i * -8i)) = 0
(54 + 12i + (-72i + -16i2)) = 0

Combine like terms: 12i + -72i = -60i
(54 + -60i + -16i2) = 0

Solving
54 + -60i + -16i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '2'.
2(27 + -30i + -8i2) = 0

Factor a trinomial.
2((3 + -4i)(9 + 2i)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(3 + -4i)' equal to zero and attempt to solve: Simplifying 3 + -4i = 0 Solving 3 + -4i = 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 + -4i = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4i = 0 + -3 -4i = 0 + -3 Combine like terms: 0 + -3 = -3 -4i = -3 Divide each side by '-4'. i = 0.75 Simplifying i = 0.75

Subproblem 2

Set the factor '(9 + 2i)' equal to zero and attempt to solve: Simplifying 9 + 2i = 0 Solving 9 + 2i = 0 Move all terms containing i to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 2i = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 2i = 0 + -9 2i = 0 + -9 Combine like terms: 0 + -9 = -9 2i = -9 Divide each side by '2'. i = -4.5 Simplifying i = -4.5

Solution

i = {0.75, -4.5}

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