Question

The polynomial P(x)= x –2x +3x –ax+b, when divided by ( x –1) and ( x+1), leaves the remainders 5 and

19 respectively. Find the values of a and b. Hence, find the remainder when P(x) is divided by ( x –3).​

Answer 1

a=9

and b=12

Step-by-step explanation:

remainder=-9

1st put x=1 on that equation then you will find b=3+a and then put x=-1 and also put b=3+a

again on that equation you will find a=9

and then put a=9 on b=3+a you will find b=13.

now put x=3,a=9 and b=12 on that equation then remainder will be -9