00:01
For this question, we need to simplify the different expressions.
00:04
So whenever we multiply two variables that have the same base but different exponents, right? in this case, like for part a, we just have to add those exponents.
00:14
So it's going with like r to the power of one -third plus one -fifth.
00:20
So if we just do the extra map here, we have 1 over 3 plus 1 over 5.
00:26
That's going to be equivalent to 5 over 15 plus 3 over 15.
00:32
All we're doing is just multiplying this by 5 over 5 and this by 3 over 3.
00:37
So we get 8 over 15 as our answer.
00:40
So this is going to be equivalent to r to the power of 8 over 15.
00:45
For the next one, when we have two exponents, right, we have r to the power of x to the power of y, let's say.
00:51
We're going to multiply x and y.
00:53
We're going to multiply both those exponents.
00:56
So in this case, we just have to multiply one third by one fifth.
00:59
That's just going to be 1 over 15...