Please help! Last question on exam!

John gave the following explanation for factoring the trinomial x2 - x - 2: "I need to find factors of -2. -1 and 2 multiply to -2 so my factors are (x - 1)(x + 2)."

Part 1: Are John's factors correct? If not, explain where he made his mistake.

Part 2: What could John have done to check the accuracy of his factors before submitting his Module 3 test?

Question

Please help! Last question on exam!

John gave the following explanation for factoring the trinomial x2 - x - 2: "I need to find factors of -2. -1 and 2 multiply to -2 so my factors are (x - 1)(x + 2)."

Part 1: Are John's factors correct? If not, explain where he made his mistake.

Part 2: What could John have done to check the accuracy of his factors before submitting his Module 3 test?

jhonyy9 · Answer

for x2 -x-2 those factors will can to be (x-2)(x+1)