00:01
Let's begin with the very first one up here.
00:03
So we have four times three to the negative two, and then two to the negative two times three to the negative one.
00:08
So what i'm going to do is just rewrite that four using the base two.
00:11
So i have two squared times three to the negative two.
00:14
And then over down here, i have two to the negative two times three to the negative one.
00:19
And the reason that is is because i want to be able to subtract those exponents using rules of exponents.
00:24
So if i divide, i subtract them.
00:26
So two minus negative two is four.
00:28
And then for 3, negative 2 minus negative 1 is negative 1.
00:33
So what i have now is going to be 2 to the 4th in the numerator, and then that's going to move down to the denominator as 3.
00:39
Well, 2 to the 4th is 16, and then 3 would just be 3.
00:43
So if you need to, you can rewrite this as a mixed number of 5 and 1 3rd...