Question

r. If x} +1 x² – 3x+2 then k= 7x-5 =(kx – 5)+ (x-1)(x-2) 2) 7 1)5 3)1​

Answer 1

By remainder theorem, when f(x) is divided by (x−2)

x−2=0,⇒x=2

the remainder =f(2)

=2(2)3+3(2)2−k(2)+5

=16+12−2k+5

=33−2k

According to question 

33−2k=7

⇒2k=26

⇒k=13