Question

on dividing x³+3x²+3x+1 by 5+2x​

Answer 1

Answer:

Find the remainder when x3+3x2+3x+1 is divided by

5+2x

Answer

Dividing x3+3x2+3x+1 by 5+2x

So, x3+3x2+3x+1 is dividend and 5+2x is divisor.

Put, 5+2x=0

∴  x=2−5

Let p(x)=x3+3x2+3x+1

Putting x=2−5

p(2−5)=(2−5)3+3(2−5)2+3(2−5)+1

           =8−125+475−21