Question

What polynomial has roots of -1, -2, and 3 ? A) x3 + 6x2 + 11x + 6
B) x3 - x2 - 5x + 2
C) x3 + 2x2 - 7x + 2
D) x3 - 7x - 6

Answer 1

Looks like we have a cubic, so it'd look like \((x + 1)(x + 2)(x + 3)\).

Answer 2

http://www.wolframalpha.com/input/?i=%28x+%2B+1%29%28x+%2B+2%29%28x+%2B+3%29

Answer 3

it is correct but u should put (x-3) not (x+3)
just a typo

Answer 4

I am sorry.

Answer 5

http://www.wolframalpha.com/input/?i=%28x+%2B+1%29%28x+%2B+2%29%28x+-+3%29

Answer 6

By the way, if \(k\) is a root, then \(x - k\) is a factor.
~Factor Theorem.