Ask your own question, for FREE!
Mathematics 15 Online
OpenStudy (drewbooks):

What is the standard form of (-12 + 2i)(-3 + 5i)?

OpenStudy (drewbooks):

A) (26 + 66i) B) (26 – 66i) C) (-46 – 54i) D) (-46 + 54i)

OpenStudy (anonymous):

26 - 66 i

OpenStudy (drewbooks):

Could you explain how you came to that?

OpenStudy (anonymous):

How anyone comes to a conclusion in a mere matter of seconds, I used a calculator XD

OpenStudy (drewbooks):

Sorry, I see that you're new here. People are meant to explain their answers.

OpenStudy (anonymous):

Oh, really?

OpenStudy (anonymous):

You have to FOIL that out

OpenStudy (anonymous):

Meaning, you need to multiply each term from the first parentheses with each term in the second one

OpenStudy (hysusonic):

okay so, first you need to get rid of the parenthesis by multiplying each term in the first paranthesis with each term in the second parenthesis

OpenStudy (drewbooks):

36 + 60i -6i -10 = 26 + 54i

OpenStudy (drewbooks):

I must have done something wrong; that's not a choice.

OpenStudy (drewbooks):

Oh, I see what I did. It should have been -60i.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!