Multiple choice L.C.M. of (x - 1) and (x2 + x + 1) is x3 + 1 x - 1 x2 + x + 1 x3 - 1 Reveal answer Fill a bubble to check yourself D Correct answer Explanation (x - 1) (x2 + x + 1) = (x3 -1) and hence LCM of terms