Hi
Ok, I am trying this again, can you please tell me if this is correct or anywhere close to what I am trying to accomplish? Thanks
4k-8-k^3+2k^2
I have come up with 2k(2+k^2+2k) I don't feel confident that it is anywhere close to what I am suppose to have.
Quick question,
On this problem why is it that the 9 seems to disapear? It seems to just drop off????
2y^3-18y^2= -28y
My final answer was 2y(y-2)(y-7)=0
2y=0 y-2=0
y=0 y=2
y-7=0 y=7
Where did the 9 go to?? I don't understand it but I think I got it right.
Thanks
Your answers are correct. y = {0, 2, 7}
Here's how it goes:
When you factor the trinomial, the sum of the two factors that make 14 must add to make -9.
You see. The -9y is made up of -7y + -2y. You may see it better this way.
Here, I just replaced the -9y in the middle with the sum of the two factors that made +14. Now, if I group the 4 term polynomial, I arrive at the desired factored result.