0:00:00.230,0:00:04.802
Since we've already factored the 3 x out, we want to work with this trinomial.
0:00:04.802,0:00:09.190
This top number should be a times c. A is the coefficient in front of x squared
0:00:09.190,0:00:15.060
and c is our constant term. So 12 times negative 2 equals negative 24, this
0:00:15.060,0:00:20.808
choice. The bottom number is the b or the coefficient in front of x, so negative
0:00:20.808,0:00:24.658
5. Great work if you found these two numbers. I know this question was tricky,
0:00:24.658,0:00:28.820
since I threw another polynomial at you. But, we want to make sure we work with
0:00:28.820,0:00:30.617
factoring this quadratic.