Gisele solved the quadratic equation x2 + 5x - 6 = 0 by factoring.
Her work is shown below.
Step 1: 22 +52 - 6 = 0
Step 2: (x + 2)(x + 3) = 0
Step 3: 2+2 = 0, 2+3 = 0
Step 4: E= -2 or 2= -3
Step 5: {-2, -3}
Gisele plugged her solutions into the original equation, and found that they did not work.
In which step did she first make a mistake?

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.

Gisele was wrong in step 2. She couldn't find the correct values to factorize.

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.