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Multiply the complex numbers: (3 + 2i)(5 – 2i). Please show the steps.

User Deju
by
7.5k points

2 Answers

6 votes

Answer:

-4i^2+4i+15

Explanation:

steps colored in picture

Multiply the complex numbers: (3 + 2i)(5 – 2i). Please show the steps.-example-1
User Glenster
by
6.9k points
4 votes

Answer:

the product of (3 + 2i)(5 – 2i) is 19 + 4i.

Explanation:

To multiply the complex numbers (3 + 2i)(5 – 2i), we can use the FOIL method:

(3 + 2i)(5 – 2i)

= 3(5) + 3(-2i) + 2i(5) + 2i(-2i) [multiply First terms, Outer terms, Inner terms, and Last terms]

= 15 - 6i + 10i - 4(i²) [simplify i² to -1]

= 15 + 4 + 4i [combine like terms]

= 19 + 4i

Therefore, the product of (3 + 2i)(5 – 2i) is 19 + 4i.

User Clauric
by
7.2k points