Question

what should be subtracted from (6x^2 - 11x^2 - 11x) to make itt exactly divisble by (2x+1)?
a) 8
b)6
c) -4
d) -2​

Answer 1

Step-by-step explanation:

We 6 is answer divide 4x4−2x3−6x2+x−5 by 2x2+x−1 as shown in the below image:

From the division, we observe that the quotient is 2x2−2x−1 and the remainder is −6.

Hence, −6 should be subtracted from 4x4−2x3−6x2+x−5 so that result is exactly divisible by 2x2+x−1.