PLEASE HELP ME PLEASE

sqrt15/sqrt15

So, depending on how much the problem wants you to simplify. The approach that one can take is to first rearrange the problem, so that it becomes:

3(17^-1/2)-(2^-1/2)

We can see that both exponents are the same; thus, we can subtract 17^-1/2 and 2^-1/2 to get a value of 15^-1/2.

Now, changing that back to a square root value, we have:

3/sqrt(15)

Since we don’t need to worry about a negative in the denominator anymore, all we need to do is multiply the top and bottom by sqrt15.