First-time asker here. I'm an old guy, going back to college, and I'm in College Algebra. I've run across a problem that I can't match up with the answer that the back of the book (or Wolfram Alpha, or Symbolab) gives.

Here's the problem:

"Use positive exponents to rewrite: $ \sqrt{y\sqrt{y}} $ "

The answer is supposed to be $ y^{3/4} $, but I can not get it there no matter what I do.

Any help would be very much appreciated!

Barnisinko