For this case we have the following quadratic equation:
To factorize, we must find two numbers that when multiplied result in -6 and when added together result in +5. These numbers are: -1 and +6
Then we factor:
Thus, the roots are:
So, Gisele was wrong in step 2. She couldn't find the correct values to factorize.
Answer:
Gisele was wrong in step 2. She couldn't find the correct values to factorize.