Algebraic Techniques, SM-Bank 149 MC Which of the following is the correct factorisation of \(15m-20\). \(15(m-20)\) \(5(m-4)\) \(5(3m-4)\) \(5(3m-20)\) Show Answers Only \(C\) Show Worked Solution \(15m-20\) \(=5\times 3m-5\times 4\ \ \ \ (\text{HCF}=5)\) \(=5(3m-4)\) \(\Rightarrow C\)