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4 votes
Can someone help? This is really hard for me

Can someone help? This is really hard for me-example-1

2 Answers

3 votes

Answer:

=
(22)/(5)  +  (9i)/(5)

Explanation:

User Rialgar
by
6.2k points
1 vote

Answer: C. 22/5 + 9i/5

Step-by-step explanation:

8-7i/1-2i divided by 1+2i/1+2i

combine: (8-7i)(1+2i)/1-2i)(1+2i)

simplify the numerator

Use foil method

8 times 1+8(2i)-7i times 1 -7i(2i) divided by (1-2i)(1+2i)

Combine like terms

22+9i divided by (1-2i)(1+2i)

simplify denominator

22+9i/5

Split fraction into two fractions

22/5 +9i/5

User Byron Voorbach
by
5.8k points