Integration - Chapter 9 - Exercise 9C - Problem 5 - A curve is such that dy/dx=12/sqrt(3x+1)-4x-2

Kindly subscribe the channel

A curve is such that dy/dx=12/sqrt(3x+1)-4x-2.
a) Show that the curve has a stationary point at x = 1 and determine its nature.
b) Given that the curve passes through the point (0,13), find the equation of the curve.