Question

What should be added to 4³−102+12+6so that it becomes exactly divisible by 2+1.

Answer 1

Step-by-step explanation:

4x^3–10x^2+12x+6 divided by (2x+1) gives a quotient of (2x^2–6x+9) and a remainder of -3. So you need to add 3 to the dividend to make it 4x^3–10x^2+12x+9.