Question

If x3+ ax2+ 22x-b has (x - 4) as a factor and leaves a remainder 4, when divided
by (x - 3), find a and b.​

Answer 1

hope this answer will be helpful

Answer 2

P(4)=4^3+a*4^2+22*4-b=0

=>64+16a+88-b=0

=>16a-b=152

P(3)=3^3+a*3^2+22*3-b=4

=27+9a+66-b=4

=>9a-b=4-93

=>9a-b=-89

7a=152+89

a=241/7

use above to find b