00:01
Length that is four yards greater than the width.
00:03
So here, so here is my rectangular parking lot.
00:10
And the length is four yards greater than the width.
00:14
The area of the parking lot is 480 square yards.
00:18
So 4 plus x multiplied by x equals 480.
00:26
So i'm going to have x squared plus 4x minus 480 zero.
00:36
So i'm just going to put that in standard form.
00:39
Now, what i have to do next is i have to figure out what two numbers.
00:47
When i multiply them, i get negative 480, but when i add them together, i get a negative 4.
00:54
So i know one of them has to be negative and one of them has to be positive.
00:59
So it's not 48 times 10.
01:10
480 divided by 24.
01:13
Okay...