Sinz
Add the complex expressions, and simplify.
(1 – 3.5i) + (3.6 + 6.5i)



This Question is Closed

Walleye
Best Response
You've already chosen the best response.
0
ok distribute it out first and lets see what you get

Sinz
Best Response
You've already chosen the best response.
0
(1+3.6)  (3.5i+6.5i)

Walleye
Best Response
You've already chosen the best response.
0
nope here is how you distribute
\[(a+b) * (c + d) = ac + ad + bc + bd\]

Walleye
Best Response
You've already chosen the best response.
0
does that help at all?

Sinz
Best Response
You've already chosen the best response.
0
yes I am sorry I am helping others and keeping up with my own

Sinz
Best Response
You've already chosen the best response.
0
13.5i + 3.6 + 6.5i = 1+3.6 *1+6.5i= 3.7 + 6.6i = 3.5i+3.6 * 3.5i+6.5i= 7.1i + 10i = 17i does that look right

Sinz
Best Response
You've already chosen the best response.
0
or is it confusing?

Walleye
Best Response
You've already chosen the best response.
0
I will tell you the answer is 4.6 + 3i

Sinz
Best Response
You've already chosen the best response.
0
okay

Walleye
Best Response
You've already chosen the best response.
0
lets double check your FOIL

Sinz
Best Response
You've already chosen the best response.
0
thank you was it that confusing?

Tyler1992
Best Response
You've already chosen the best response.
1
All you do is add the real parts and then add the imaginary parts.. There shouldnt be any distributing

Walleye
Best Response
You've already chosen the best response.
0
You FOIL is very confusing haha.

Sinz
Best Response
You've already chosen the best response.
0
works lets double check

Walleye
Best Response
You've already chosen the best response.
0
Im really really sorry!!!!! I thought it was (1 – 3.5i) (3.6 + 6.5i) and not (1 – 3.5i) + (3.6 + 6.5i)

Walleye
Best Response
You've already chosen the best response.
0
tyler is right!

Tyler1992
Best Response
You've already chosen the best response.
1
\[(1 + 3.6) + (3.5 + 6.5)i\]\[4.6 + 3i\]

Sinz
Best Response
You've already chosen the best response.
0
okay thank you tyler

Sinz
Best Response
You've already chosen the best response.
0
and you too Walleye