Question

How do you write as a fractional exponent `(3)(sqrty^2)`?

Answer 1

If you meant this question as displayed
`color(white)("XXXXX")` `(sqrt(y)^2) = y`
and no fractional exponent is involved (`(3)(sqrty^2) = 3y`)

Similarly if you meant `(3)(sqrt(y^2))`
`color(white)("XXXXX")` `(3)(sqrt(y^2)) = abs(3y)`

Perhaps you wanted: `root(3)(y)^2`
`color(white)("XXXXX")` `= y^(2/3)`

or `root(3)(y^2)`
`color(white)("XXXXX")` `= abs(y)^(2/3)`