Q13Multiple choiceExercise 2.1x + 1 is a factor of the polynomial(A)x3 + x2 – x + 1(B)x3 + x2 + x + 1(C)x4 + x3 + x2 + 1(D)x4 + 3x3 + 3x2 + x + 1Show answer(B) x3 + x2 + x + 1