(3+4i)(4-3i)=

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Solution for (3+4i)(4-3i)= equation:


Simplifying
(3 + 4i)(4 + -3i) = 0

Multiply (3 + 4i) * (4 + -3i)
(3(4 + -3i) + 4i * (4 + -3i)) = 0
((4 * 3 + -3i * 3) + 4i * (4 + -3i)) = 0
((12 + -9i) + 4i * (4 + -3i)) = 0
(12 + -9i + (4 * 4i + -3i * 4i)) = 0
(12 + -9i + (16i + -12i2)) = 0

Combine like terms: -9i + 16i = 7i
(12 + 7i + -12i2) = 0

Solving
12 + 7i + -12i2 = 0

Solving for variable 'i'.

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

Subproblem 1

Set the factor '(4 + -3i)' equal to zero and attempt to solve: Simplifying 4 + -3i = 0 Solving 4 + -3i = 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 + -3i = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3i = 0 + -4 -3i = 0 + -4 Combine like terms: 0 + -4 = -4 -3i = -4 Divide each side by '-3'. i = 1.333333333 Simplifying i = 1.333333333

Subproblem 2

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

Solution

i = {1.333333333, -0.75}

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