2018-II-07

16-06-2021 app.cch No Comments

Ans: D

\begin{array}{rcl} f (2 m - 1) & = & 3 (2 m - 1)^{2} - 2 (2 m - 1) + 1 \\ = & 12 m^{2} - 12 m + 3 - 4 m + 2 + 1 \\ = & 12 m^{2} - 16 m + 6 \end{array}

2018, HKDSE-MATH, Paper 2 Basic Functions