0606 P21 - Jun 2024 - Q2 - 4 marks
7331
(a) Write \(3+4 x-2 x^{2}\) in the form \(a+b(x+c)^{2}\), where \(a, b\) and \(c\) are integers. (b) Hence write down the range of the function \(\mathrm{f}(x)=3+4 x-2 x^{2}\), where \(x \in \mathbb{R}\).
