Question

Which of the following is a factor of the polynomial?
f(x)=x^3+6x^2+3x-10
A. (x+1)
B. (x-1)
C. (x-2)
D. (x-10)

Answer 1

y = (x - 1)(x + 2)(x + 5)

Explanation:
Since a + b + c + d = 0, f(1) = 0. One factor is (x - 1).
After division -->
y=(x−1)(x2+7x+10)

The trinomial in parentheses can be factored
Find 2 numbers knowing sum (7) and product (10). They are 2 and 5.
x 2+7x+10=(x+2) (x+5)
y=(x−1) (x+2) (x+5)

A would be correct!

Answer 2

@Lola —
"would be" <~~??
Or "is"?

And in the future, please don't plagiarize anything from other websites onto Jiskha.com. Plagiarized replies will be removed.