Ask your own question, for FREE!
Mathematics 12 Online
OpenStudy (anonymous):

HELP FOR A MEDAL AND FAN

OpenStudy (goformit100):

Sure

OpenStudy (anonymous):

Find the product of (x + (3+5i))^2.

OpenStudy (anonymous):

first fallow (a+b)^2 formula.... (a+b)^2=a^2+b^2+2ab

OpenStudy (anonymous):

then where ever you get i^2 replace with -1

OpenStudy (anonymous):

i think you got it....

OpenStudy (anonymous):

@omgkelley

OpenStudy (anonymous):

Okay :)

OpenStudy (goformit100):

(x + (3+5i))^2 =(x + (3+5i))(x + (3+5i)) =(x^2 + x(3+ 5i) + x(3+ 5i) + (3+ 5i)^2) =(x^2 + x(3+ 5i) + x(3+ 5i) + {(3+ 5i)(3+ 5i)} =(x^2 + x(3+ 5i) + x(3+ 5i) + {9 + 15i + 15i +25(-1)} =(x^2 + x(3+ 5i) + x(3+ 5i) + 9 + 30i - 25) =(x^2 + 2x(3+ 5i) + 9 + 30i - 25) =(x^2 + 6x + 10xi +9 + 30i - 25) =(x^2 + 6x + 40i -16)................Answer

OpenStudy (goformit100):

@omgkelley ^ check it

OpenStudy (anonymous):

Thank you soooooo much! :D :D

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!