bellaplaza bellaplaza

22-06-2014
Mathematics

Answered

(8-2i)(5+i)

A.38-18i
B. 38
C. 40+2i
D. 42-2i
E. 42

Verified Answer :

crisforp crisforp

15-07-2014

( 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

Answer Link

Related Questions

How did the Punic Wars affect the mindset of the Romans a They had a renewed interest in farming b They realized the importance of treating conquered peoples we

Which of the following elements will most easily lose its electrons to fluorine to form a salt A Na B Al C S D Ar

What is the earths primary source of light energy

why do ice cubes always float at the top of a glass of water

Ralph read 18 books during his simmer vacation he read the same number of books each month for 3 monthsHow many books did he read each month

what is a chronogram

Which statement best illustrates the function of RNA in relation to DNA and proteins A Proteins make DNA which then creates RNA B DNA makes RNA which then creat

the sum of two numbers is 54 their difference is 22 find the numbers

Mixed numbers between 0 and 2 with an interval of 13 between each pair of mixed numbers

Solve 1510x15 1412x8