Question

Find the value of a and b so that the polynomial x^4+ax^3-7x^2+8x+b is exactly divisible by
(x+2) as well as (x+3)​

Answer 1

Step-by-step explanation:

x=-2

16-8a-28-16+b=0

-8a+b=28

x=-3

81-27a-63-24+b=0

-27a+b=6

-8a+b=28

subtract

................ .....

............... .....

-19a=22

a=-22/19

b=27a+6

b=27×-22/19+6

by putting the value your answer come