Question

(15x^2)/(5√x) help! I'm trying to simplify this, I've divided by 5 but now i'm kind of stuck on what to do next....

Answer 1

I don't understand very well your question, but I see that 15 and 5 has a common divisor(which is 5) so you can divide both by it and you'd have then
\[3x²/x^{1/2}\]
so as you know when you have the same variable in the numerator and denominator with different exponents you subtract the the lower from the upper, and that leaves:
\[3x^{2-(1/2)}= 3x^{3/2}\]

Answer 2

Thank you so much :D I have kind of forgotten some of the rules you are a life saver!