If A=x3,B=4x2+x−1,C=x+1, then find (A-B)(A-C)
What must be subtracted from x3−3x2+5x−1 to get 2x3+x2−4x+2 ?
What must be subtracted from (x3−3x2+5x−1) to get (2x3+x2−4x+2) ?