Question

(3 − 4i)(5 + 2i)

A. 15 − 8i
B. 23 − 14i
C. 15 − 8i2
D. 15 − 14i − 8i2

Answer 1

B.23-14i

Explanation:

(3x5)+(3x2i)-(4ix5)-(4ix2i)

15+6i-20i-8(-1)

15+6i-20i+8

23-14iฟ