Question

Using remainder theorem, find remainder when:x3-ax2+2x-a is divided by x-a

Answer 1

 Apply remainder theorem 
=>x – a =0 
=> x =  a
Replace x by  a we get 
=> x3 – ax2 + 6x – a 
=>( a)3 -a(a)2 + 6(a) - a

=>  a3sup> – a3 + 6a – a
=>  5a
Remainder is 5a