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madam [21]
3 years ago
13

(8-4i)(5i-2) I need the steps

Mathematics
1 answer:
Rus_ich [418]3 years ago
6 0

Answer:

\huge{\boxed{\sf{   -20i^{2} + 48i - 16}}}

Step-by-step explanation:

( 8 - 4i ) ( 5i - 2 )

Use the distributive property to multiply each term of the first binomial by each term of the second binomial.

⇒8 ( 5i - 2 ) - 4i ( 5i - 2 )

⇒40i - 16 - 20i^{2}  + 8i

Combine like terms.

Like terms are those which have the same base.

⇒- 20i^{2} +40i+ 8i - 16

⇒-20i^{2}  + 48i - 16

Hope I helped!

Best regards!

~TheAnimeGirl

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