Question

Check whether the polynomial p(r) = 4r^3 +4r^2-r-1 is a multiple of 2r +1.​

Answer 1

Answer:

Yes it is a multiple

Step-by-step explanation:

Putting r=-1/2 in p(r)

4(-1/2)^3+4(-1/2)^2-(-1/2)-1

=4(-1/8)+4(1/4)+1/2-1

=-1/2+1-1/2-1

=0

Therefore it is divisible

Please mark it the brainliest answer