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Mathematics 18 Online
OpenStudy (anonymous):

I had problems w/ x^3 + 9x^2 + 27x - 27 can u help me I'm hopeless TT

Parth (parthkohli):

I bet this is factoring.

OpenStudy (anonymous):

Yea.. :|

OpenStudy (tamtoan):

can you check the sign + and - ?

OpenStudy (anonymous):

Oops it's + 27x + 27 sorrry

OpenStudy (tamtoan):

:) use this formula ...you can figure out ...(x + y)^3 = x^3 + 3x^2y + 3xy^2 + y^3

Parth (parthkohli):

No, no, no.

Parth (parthkohli):

Factor the first two terms an factor the last two terms separately.

OpenStudy (tamtoan):

@ParthKohli and what do you get after you do that ?

Parth (parthkohli):

I get an answer.

Parth (parthkohli):

In fact, I get THE answer.

OpenStudy (tamtoan):

what answer do you get ? :)

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