{MCQ} which of the following is a cubic polynomial? a) x3+3x2-4x+3 b) x2+4x-7 c)3x2+4 d) 3(x2+x+1) Share with your friends Share 0 Pooja Khanna answered this (x3 + 3x2 - 4x + 3) is a cubic polynomial since its highest power is 3. -2 View Full Answer