4x^3-5x^2-10x-3 divided by 4x+3

Answer 1

Read and apply this:

http://www.sosmath.com/algebra/factor/fac01/fac01.html

The first two terms should be x^2 -2x

There will me no remainder term

Answer 2

X^2-2X-1 is the complete answer

see site above for example