y =( ( x^3 + 1 )/x )^5
dy/dx = 5[ ((x^3 + 1 )/x)^4] * d((x^3 + 1 )/x)
d(x^3 + 1 )*x - ( x^3 + 1 )*d(x)
dy/dx = 5 ((( X ^3 + 1 )/X)^4) * ------------------------------------------
X^2
3x^2 * x - ( X^3 + 1 )
dy/dx = 5((( x^3+1)/x)^4) * ---------------------------------------
x^2
3x^3 - x^3 - 1
dy/dx = 5 ((( x^3 + 1)/x)^4) * --------------------------------
x^2
dy/dx =[5(((x^3 + 1 )/x)^4) * ( 2x^3 - 1 )]/x^2