assignment.itslearning.com C itslearning 1 1 Series - IFYMAT~1.pdf I IFY Maths Busines IFYMB004 Maths (Business) Exam Question 14 a) Curve C has equation y = 3x4+ 32x3 + 120x2 + 192x + 120. Find [2] dx b) Divide your answer to part a) by (x + 2) and hence show that dy can be [ 4] dx written as c(x + 2)2(x + 4) where c is to be found. c) i) Find the coordinates of the stationary values on curve C. [3] ii) For each stationary value, use calculus to determine if it is a maximum, a minimum or a point of inflexion. [4]