Question 1 - A-Level Maths

Exam Board	SPS
Module	SPS SM (SPS SM)
Year	2020
Session	June
Topic	Differentiation Applications
Type	Find derivative of polynomial

1. A curve has equation $$y = 2 x ^ { 3 } - 2 x ^ { 2 } - 2 x + 8$$

Find $\frac { \mathrm { d } y } { \mathrm {~d} x }$
Hence find the range of values of $x$ for which $y$ is increasing. Write your answer in set notation.