Ask your own question, for FREE!
Mathematics 8 Online
OpenStudy (anonymous):

(1+3i) (1-i) ?

OpenStudy (3psilon):

Foil \[1^{2} -i+3i-3i^{2}\] \[i^{2} = -1\] \[2i + 1 -(-3) = 4 + 2i\]

OpenStudy (3psilon):

Get it ?

OpenStudy (anonymous):

yeahh thank you

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!