2014-II-02

16-06-2021 app.cch No Comments

Ans: A

\begin{array}{cl} u^{2} - v^{2} - 5 u + 5 v \\ = & (u + v) (u - v) - 5 (u - v) \\ = & (u - v) (u + v - 5) \end{array}

2014, HKDSE-MATH, Paper 2 Factorization