(5-2j)(2+4J)=

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Solution for (5-2j)(2+4J)= equation:


Simplifying
(5 + -2j)(2 + 4J) = 0

Multiply (5 + -2j) * (2 + 4J)
(5(2 + 4J) + -2j * (2 + 4J)) = 0
((2 * 5 + 4J * 5) + -2j * (2 + 4J)) = 0
((10 + 20J) + -2j * (2 + 4J)) = 0
(10 + 20J + (2 * -2j + 4J * -2j)) = 0
(10 + 20J + (-4j + -8jJ)) = 0
(10 + 20J + -4j + -8jJ) = 0

Solving
10 + 20J + -4j + -8jJ = 0

Solving for variable 'J'.

Move all terms containing J to the left, all other terms to the right.

Add '-10' to each side of the equation.
10 + 20J + -4j + -10 + -8jJ = 0 + -10

Reorder the terms:
10 + -10 + 20J + -4j + -8jJ = 0 + -10

Combine like terms: 10 + -10 = 0
0 + 20J + -4j + -8jJ = 0 + -10
20J + -4j + -8jJ = 0 + -10

Combine like terms: 0 + -10 = -10
20J + -4j + -8jJ = -10

Add '4j' to each side of the equation.
20J + -4j + 4j + -8jJ = -10 + 4j

Combine like terms: -4j + 4j = 0
20J + 0 + -8jJ = -10 + 4j
20J + -8jJ = -10 + 4j

Reorder the terms:
10 + 20J + -4j + -8jJ = -10 + 4j + 10 + -4j

Reorder the terms:
10 + 20J + -4j + -8jJ = -10 + 10 + 4j + -4j

Combine like terms: -10 + 10 = 0
10 + 20J + -4j + -8jJ = 0 + 4j + -4j
10 + 20J + -4j + -8jJ = 4j + -4j

Combine like terms: 4j + -4j = 0
10 + 20J + -4j + -8jJ = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(5 + 10J + -2j + -4jJ) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(5 + 10J + -2j + -4jJ)' equal to zero and attempt to solve: Simplifying 5 + 10J + -2j + -4jJ = 0 Solving 5 + 10J + -2j + -4jJ = 0 Move all terms containing J to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + 10J + -2j + -5 + -4jJ = 0 + -5 Reorder the terms: 5 + -5 + 10J + -2j + -4jJ = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 10J + -2j + -4jJ = 0 + -5 10J + -2j + -4jJ = 0 + -5 Combine like terms: 0 + -5 = -5 10J + -2j + -4jJ = -5 Add '2j' to each side of the equation. 10J + -2j + 2j + -4jJ = -5 + 2j Combine like terms: -2j + 2j = 0 10J + 0 + -4jJ = -5 + 2j 10J + -4jJ = -5 + 2j The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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