5x*(3-2x)^(-1/2)=t(x)
try z(x)=3-2x^1/2 derivative is 3-2x^-1/2*-1=z'(x)
z'(x)=t(x)*-1/5x and z(x)=z'(x)*(2x-3)
try xz(x) derivative is xz'(x)+z(x)=z'(x)*(3x-3)
you need to get z'(x)*-5x
so derivative of (ax+b)z(x) is z'(x)*(b+3ax-3a)
a=-5/3
b=-5
answer is z(x)(-5/3x-5)

Answer #1| 23/12 2013 07:22