00:01
We're going to use the fundamental theorem of calculus.
00:02
We're going from negative 3 to 0.
00:04
So, x squared plus 4 .7 dx.
00:08
Okay, so we've got this equation here.
00:10
And so, taking the answer derivative first, we've got x to the 3 plus 4x squared over 2 plus 7x, and then taking that from negative 3 to 0.
00:23
I'm going to ignore that first part because that whole thing is just going to be 0 there.
00:27
And then we're going to do minus.
00:28
And so it's going to be negative 3 to the 3 over 3.
00:32
Then minus 4x 4 times negative 3 squared over 2.
00:43
That's also going to be minus.
00:45
So the negative is distributing to all of them, so it would be 7 times negative 3...