00:01
The first thing we're being asked to do in this particular problem is to find the area for the given rectangle.
00:05
Remember, to find the area of a rectangle, we have to multiply the length times the width.
00:10
Well, in this case, the length is y, and the width is 3y.
00:14
So we just need to substitute these into our formula.
00:17
So when we do, we'll have a equals y times 3y.
00:21
So now we just need to apply our product rule, meaning we need to multiply the coefficients, so 1 times 3 is 3.
00:28
And don't forget, for the exponents, you need to combine them by adding.
00:32
And each exponent is a 1.
00:34
So y to the 1 times y to the 1 is y to the 2nd.
00:38
So now we found the area of this rectangle...