SOLUTION: Please solve. Are (x+4) and (x+1) factors of the polynomial (x^3

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Question 378717: Please solve.
Are (x+4) and (x+1) factors of the polynomial (x^3 - 13x + 12)?
dsingletary@fsd1.org
Found 2 solutions by jim_thompson5910, Alan3354:
Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website!
To see if (x+4) is a factor, use polynomial long division to find that

Since we get a remainder of 0, this means that (x+4) is indeed a factor.

To see if (x+1) is a factor, use polynomial division again to get

This time we don't get a remainder of 0. So (x+1) is NOT a factor.

If you need more help, email me at jim_thompson5910@hotmail.com

Also, feel free to check out my tutoring website

Jim

Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website!
Sub -4 and -1 for x, and see if the value is zero.

SOLUTION: Please solve. Are (x+4) and (x+1) factors of the polynomial (x^3 - 13x + 12)? dsingletary@fsd1.org