Evaluating a large product by substitution
Evaluating a large product by substitution
Secondary 2
4 marks
TGM Original Questions
- Factorise \(4m^2+12m+5\).[2]
- Choose a suitable value of \(m\) and hence evaluate \(101\times105\).[2]
Solution:
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Answer:(a) \((2m+1)(2m+5)\) (b) \(10605\).
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