Bellaplazaid
Bellaplazaid
Mathematics
Answered
(8-2i)(5+i)
A.38-18i
B. 38
C. 40+2i
D. 42-2i
E. 42
Sagot :
Crisforpid
Crisforpid
( 8 - 2i ) * ( 5 + i ) = 40 + 8i - 10i - 2* i^2 = 40 -2i - 2 * ( -1 ) = 40 + 2 - 2i = 42 - 2i;
THE ANSWER IS D. 42 - 2i
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