Question

for what value of 'a' will be the expression 3x232x+a is divisible byx-2​

Answer 1

Answer:

p=2 and q=1

Step-by-step explanation:

Let f(x)=px

3

+x

2

−2x−q

Since f(x) is divisible by (x−1) and (x+1) so x=1 and −1 must make f(x)=0.

Therefore, p+1−2−q=0, i.e., p−q=1; and

−p+1+2−q=0, i.e., p+q=3

Thus p=2 and q=1