Question

actor x3 + x2 + x + 1 by grouping. What is the resulting expression? (x2)(x + 1) (x2 + 1)(x) (x2 + 1)(x + 1) (x3 + 1)(x + 1)

Answer 1

So for this, factor x^3 + x^2 and x + 1 separately. Make sure that they have the same quantity on the inside: $x^2(x+1)+1(x+1)$

Now you can rewrite the expression as: $(x^2+1)(x+1)$ , which is your final answer.