00:01
For this problem, it's a good thing to notice is that the capital p is in thousands.
00:04
So when we first write our equation, we're going to use 804 .2 is equal to 0 .08x squared minus 13 .08x, and then plus 927.
00:29
Okay, so we're just trying to find what our x value would be.
00:34
So first we're going to get in standard form by subtracting 804 .2.
00:38
So do 927 minus 804 .2, which is going to be 122 .8.
00:47
We're going to have 0 .08 x squared minus 13 .08x, and then plus 122 .8.
01:06
So what i would do here is just write in your notes like what is a.
01:10
So a is 0 .08.
01:13
B is equal to negative 13 .08.
01:18
And c is equal to 122 .8.
01:24
Then plugging those into the quadratic formula to get our x values.
01:31
So i'm writing it again because it's just good practice for you to write it as well.
01:37
You want to try to memorize this.
01:39
It just comes up so much in mathematics, especially the discriminant...