Question

A student performed the following steps to find the solution to the equation

x2 + 4x-12-0. Where did the student go wrong?

Answer 1

Step 2

Explanation:

Step 2 because in step 1, they correctly wrote the factors of the polynomial as (x+6) and (x-2). But then in step 2, (x+6) suddenly became (x-6) and (x-2) became (x+2), which is incorrect.

The answers in step 3 should have been -6 and 2.