00:01
Okay, so given one side of a triangle, an equal lateral triangle, which means all the sides are the same link, we're going to start up by finding the perimeter.
00:12
Well, if all three sides are this, then all i have to do is multiply this by three to get my perimeter for this triangle.
00:19
So my perimeter for the triangle would be 21x squared plus 33xy plus 12y square.
00:29
So this would be the perimeter of this triangle.
00:31
Now, also in this case, we're being asked to factor it.
00:36
So now i would go back to if i'm going to factor this.
00:40
Well, i want to start off with my gcf out.
00:43
So we're going to go with this as our parameter.
00:47
And then i'm going to bounce back to up here.
00:52
But i'm going to go ahead and take my three down because i've already got my three taken out as a gcf.
00:57
There's no point in redoing that.
00:58
And we're going to start with our 7x squared plus 11xy plus 4y squared.
01:02
Going from there, i would do seven times four is 28, and then i've got 11 in the middle.
01:08
I'm looking for two numbers that multiply to give me 28 and combined to give me 11...