Some steps to rewrite the expression x3 − x + 2x2 − 2 as a product of three factors are shown below: step 1: x3 − x + 2x2 − 2 step 2: x3 + 2x2 − x − 2 step 3: x2(x + 2) − 1(x + 2) which of the following best shows the next two steps to rewrite the expression? step 4: (x2 + 1)(x + 2); step 5: (x + 1)(x + 1)(x + 2) step 4: (x2 − 1)(x + 2); step 5: (x − 1)(x + 1)(x + 2) step 4: (x2 − 1)(x + 2); step 5: (x + 1)(x + 1)(x + 2) step 4: (x2 + 1)(x + 2); step 5: (x − 1)(x + 1)(x + 1)