00:01
We're going to solve this quadratic inequality by factoring first.
00:05
So we're finding the numbers that multiply to positive 4 and add up to negative 4.
00:14
So it's negative 2 and 2.
00:15
So this becomes x minus 2, x minus 2 is less than or equal to 0.
00:21
And so we set each factor equal to 0 and we get x equals 2, 2 times.
00:29
And so i'm going to create a number line.
00:31
And 2 is our only number on it.
00:35
That's where it equals 2.
00:36
So we've created, i mean, that's where it equals 0.
00:39
We've created two regions, negative infinity to negative 2.
00:44
Not negative 2, sorry.
00:47
Negative infinity to 2 and then 2 to infinity.
00:51
So those are our two regions...