Perform the indicated operation. Leave all answers in the form a + b i.
(7 - 2 i ) - (6 - 3 i )
a. 1-i
b. 1+5i
c. 1+i
d. 1-5i

Question

Perform the indicated operation. Leave all answers in the form a + b i. 
(7 - 2 i ) - (6 - 3 i ) 
a. 1-i 
b. 1+5i 
c. 1+i 
d. 1-5i

anonymous · Answer

combine like terms

anonymous · Answer

think that $$(7 - 2 i ) - (6 - 3 i ) $$ is just like $$(7 - 2 x) - (6 - 3 x ) $$

parthkohli · Answer

Treat $i$ like a variable. These imaginary do not deserve special treatment. lol

anonymous · Answer

It's not like they get a whole field in mathematics to themselves...

anonymous · Answer

clear what to do right?  remove parentheses, don't forget the distributive law, then combine like terms

unklerhaukus · Answer

$$(7 - 2 i ) - (6 - 3 i ) $$$$=7 - 2 i  -6 + 3 i  $$$$=(7 -6)+  (- 2  + 3 )i$$

anonymous · Answer

c.?

anonymous · Answer

Or is it a.?

anonymous · Answer

@UnkleRhaukus

anonymous · Answer

The answer I got is 2i but that doesn't correlate to the options given

unklerhaukus · Answer

$$=(7−6)+(−2+3)i$$what does the first bracket simplify to ?

unklerhaukus · Answer

7-6=1 right?

unklerhaukus · Answer

$$=1+(−2+3)i$$what about the second bracket?


-2+3=?|dw:1344744633561:dw|