Ask your own question, for FREE!
Mathematics 7 Online
OpenStudy (anonymous):

anyone good at simplifying

OpenStudy (anonymous):

\[\frac{ \sqrt{-1} }{ (4-3i)-(2+5i) }\]

OpenStudy (anonymous):

i know sqrt -1= i

OpenStudy (anonymous):

im not sure about the bottom part

OpenStudy (bibby):

combine like terms

OpenStudy (anonymous):

i don't multiply right

OpenStudy (bibby):

not here, no. there's nothing to multiply. it's just \(A-B\)

OpenStudy (anonymous):

umm oh ok so 2-8i?

OpenStudy (bibby):

that looks good

OpenStudy (anonymous):

idk i was thinking distribute the negative sign to the second part and then multiply

OpenStudy (bibby):

let's distribute the negative

OpenStudy (anonymous):

ok so it would be (4-3i)(-2-5i)?

OpenStudy (bibby):

|dw:1420576274585:dw| long winded way of saying no. when you distribute the negative, the sign doesn't disappear.

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!