Question

I have another one a little more complicated.
x^3-4x^2+5x20

Answer 1

is that 5 times x plus 20
?

Answer 2

Dammit....sorry. x^3-4x^2+5x-20. Sorry about that. Duh!

Answer 3

ha, i got it! try pluging in small integers between 1 and 5

Answer 4

also, my TI calculator has a numeric solver that you could have used if you had a TI

Answer 5

When I first answered this. I got (x^3-4x^2) + (5x-20). Then x^2 (x+4)+5(x-4). I was told it was incorrect. I need help please.

Answer 6

you are right

Answer 7

the only error i see is x^2 (x+4) should be x^2 (x-4)

Answer 8

Hmmm....then if I go with that answer I'd have
x^2(x-4)+5(x-4). Then shouldn't I keep going with it? Like say
(x-4)(x^2+5) ? It Doesn't seem right? :/

Answer 9

I really hate algebra.....

Answer 10

try graphing x^3-4x^2+5x-20
and (x-4)(x^2+5)
you will see they are the same.
You did a good job factoring.

Answer 11

Really? I cant believe I finally got it right. Thanks Matt!

Answer 12

I had fun with that one.

Your welcome! :-D