OpenStudy (anonymous):

3x^2=-81 imaginary numbers

5 years ago
OpenStudy (precal):

divide both sides by 3 take the square root of both sides

5 years ago
OpenStudy (anonymous):

when does i come into play

5 years ago
OpenStudy (anonymous):

the answer is \[3\sqrt{3}\i]

5 years ago
OpenStudy (anonymous):

my bad that was supposed to say 3 root 3 i

5 years ago
OpenStudy (precal):

|dw:1337649282938:dw|

5 years ago
OpenStudy (anonymous):

thanks, I missed imaginary numbers in class, very confusing

5 years ago
OpenStudy (precal):

do you know all of the steps needed?

5 years ago
OpenStudy (anonymous):

not really

5 years ago
OpenStudy (precal):

ok I will post it

5 years ago
OpenStudy (anonymous):

thanks

5 years ago
OpenStudy (precal):

|dw:1337649512961:dw|

5 years ago