Question

differentiate the following
1. y=x^3(x+5)​

Answer 1

Answer:

dy/dx = (x+5)d/dx(x^3) + x^3d/dx(x+5)

=>dy/dx = 3x^2(x+5) + x^3

=>dy/dx = x^2(3x+15+x)

=>dy/dx = x^2(4x+15)