Given the binomials (x - 3), (x - 1), (x + 2), and (x + 3), which one is a factor of f(x) = 2x3 + 3x2 - 2x - 3?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
(x - 3)
(x - 1)
(x + 2)
(x + 3)
OpenStudy (mathstudent55):
Look at the last term of the given 3rd degree polynomial.
What is it?
OpenStudy (anonymous):
@aaronq
OpenStudy (cp9454):
(x-1)
OpenStudy (mathstudent55):
The answer is -3.
That means, choice C can be eliminated.
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (mathstudent55):
Now look at the remaining choices:
A. x - 3
B. x - 1
D. x + 3
If each one of these were a factor, that means the solutions they give are:
A. x = 3
B. x = 1
D. x = -3
All you need to do is evaluate the polynomial at each of those values of x. Whichever one gives you a polynomial value of zero is the answer.
OpenStudy (anonymous):
D?
OpenStudy (mathstudent55):
Since all you want is an answer, and someone already gave it, I suggest you read the answers again.
OpenStudy (anonymous):
Ohh I didn't see his answer, so then im guessing B is correct?
OpenStudy (cp9454):
B is correct
Still Need Help?
Join the QuestionCove community and study together with friends!