is this correct?...

Question

is this correct?...

anonymous · Answer

attachment

e.mccormick · Answer

What did you pick as an answer?

anonymous · Answer

@e.mccormick B

e.mccormick · Answer

Yes.  3td power is highest, and 3 terms.

e.mccormick · Answer

No need to @ name people all the time.  It notifies me of replies even without that because I have posted in the question/answer chain.

anonymous · Answer

ohh okay, haha i didn't know that

e.mccormick · Answer

Yah.  Watch your notification bar.  @kevincourtes this time.

e.mccormick · Answer

No at this time.

anonymous · Answer

haha can you help me with this one? it's my last problem

e.mccormick · Answer

If you are onn a different message, the notification bar wll still pop up a message the second way.

e.mccormick · Answer

OK, so, did you find the possible solutions to this one?

anonymous · Answer

no

e.mccormick · Answer

Well, they are saying to graph it.  So, what would you do for the first step?

anonymous · Answer

i dont know how to graph this

e.mccormick · Answer

Well, any equation.  When you do the graph, you want everything on one side of the = sign.  Then you can treat it as a function.

e.mccormick · Answer

Can you graph $y=x^3+3x^2-4$?  And do you see that all I did was move the 4?

anonymous · Answer

sorry i didn't answer, so when i graph the equation how do i know whats the answer?

e.mccormick · Answer

Well, it will be one of the zeros for x.  And, negative dimensions are impossible.

e.mccormick · Answer

And by a zero for x, I mean when y=0, what is the x value?

anonymous · Answer

like that

e.mccormick · Answer

I think you forgot the -4.

anonymous · Answer

it has to be -4?

e.mccormick · Answer

anonymous · Answer

ohh ok so the x value is 1

anonymous · Answer

?

e.mccormick · Answer

Yah. 1.

e.mccormick · Answer

Because the -2 is impossible, it has to be 1.

anonymous · Answer

alright thanks man!