Question

Gisele solved the quadratic equation x2 + 5x - 6 = 0 by factoring.

Answer 1

For this case we have the following quadratic equation:

$x ^ 2 + 5x-6 = 0$

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

$-1 + 6 = 5\\-1 * 6 = -6$

Then we factor:

$(x-1) (x + 6) = 0$

Thus, the roots are:

$x_ {1} = 1\\x_ {2} = - 6$

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.