Can someone help me with this, please? I swear we never did any of these problems! (x+11)(x-2)(x+9)0
I am really struggling to finish up this class and move on! ;)

Question

Can someone help me with this, please? I swear we never did any of these problems! (x+11)(x-2)(x+9)>0
I am really struggling to finish up this class and move on! ;)

anonymous · Answer

has zeros at -11, -9 and 2.  is negative, then positive, then  negative then positive.  so answer is (-11,-9) and (2, infinity)

anonymous · Answer

by which i mean this is a polynomial of degree three. a simple graph will show you where it is positive and negative. try here http://www.wolframalpha.com/input/?i=%28x%2B11%29%28x-2%29%28x%2B9%29

anonymous · Answer

Sorry my reponse took so long. My computer froze up. Thank you for your reposnse! Very helpful!!!

anonymous · Answer

yw