229k views
4 votes
Find the product.

(7 - 8i)(8 + 7i)
a.
0 - 113i
c.
112 - 15i
b.
112 + 15i
d.
-56i2 - 15i +56

User Kern
by
9.3k points

2 Answers

2 votes

Answer: 112-15i

Explanation:

(7)(8)+(7)(7i)+(-8i)(8)+(-8i)(7i)

56+49i-64i(-56(-1))

56+49i-64i+56

112-15i

User Charlie Crown
by
8.6k points
6 votes

Answer:

The anser is C. 112 - 15i

Explanation:

User RN Kushwaha
by
8.1k points

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