What is the int from 25 to 64 of ln(y)/√y) dy?

int from 25 to 64 (ln(y)/√y dy

i m trying to do integration by parts here and this is what i have so far:

u = ln(y)

du = 1/y dy

dv = 1/√y dy

v = 2√y

int(ln(y)/√y) dy)

= uv - int(vdu)

=ln(y)2√y - int(2√y*1/y dy)

= 2√y ln(y) -4√y

I subbed in the 64 and 25 but the answer i get is wrong.. i don't know how to exactly go from here .. if someone could help me out, it would be great! thanks.