(9+8i)(9+3i)=

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Solution for (9+8i)(9+3i)= equation:


Simplifying
(9 + 8i)(9 + 3i) = 0

Multiply (9 + 8i) * (9 + 3i)
(9(9 + 3i) + 8i * (9 + 3i)) = 0
((9 * 9 + 3i * 9) + 8i * (9 + 3i)) = 0
((81 + 27i) + 8i * (9 + 3i)) = 0
(81 + 27i + (9 * 8i + 3i * 8i)) = 0
(81 + 27i + (72i + 24i2)) = 0

Combine like terms: 27i + 72i = 99i
(81 + 99i + 24i2) = 0

Solving
81 + 99i + 24i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '3'.
3(27 + 33i + 8i2) = 0

Factor a trinomial.
3((3 + i)(9 + 8i)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(3 + i)' equal to zero and attempt to solve: Simplifying 3 + i = 0 Solving 3 + i = 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 + i = 0 + -3 Combine like terms: 3 + -3 = 0 0 + i = 0 + -3 i = 0 + -3 Combine like terms: 0 + -3 = -3 i = -3 Simplifying i = -3

Subproblem 2

Set the factor '(9 + 8i)' equal to zero and attempt to solve: Simplifying 9 + 8i = 0 Solving 9 + 8i = 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 + 8i = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 8i = 0 + -9 8i = 0 + -9 Combine like terms: 0 + -9 = -9 8i = -9 Divide each side by '8'. i = -1.125 Simplifying i = -1.125

Solution

i = {-3, -1.125}

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