Given that when #(x^2+x-2)# divides #f(x)=x^3+ax+b# and #g(x)=2x^3+3x^2-1# respectively, the remainders are the same. Find the value of #a-b# ?
2 Answers
Jun 26, 2017
Explanation:
Now when
hence
therefore using factor theorem we should have
i.e.
or
and
or
Adding (1) and (2), we get
and
Jun 26, 2017
Explanation:
Here we have
so we have
then