Q. x−1 is a factor of which of the following?I. x2+x−2II. 2x2−5x+3a) Neitherb) I onlyc) II onlyd) I and II
Understand the problem: Step 1: Understand the problem.We need to find out if x−1 is a factor of the given polynomials.
Check factor x−1: Step 2: Check if x−1 is a factor of x2+x−2. Use the factor theorem: if x−1 is a factor, then substituting x=1 should make the polynomial equal to zero. Substitute x=1 into x2+x−2: 12+1−2=1+1−2=0.