Evaluating a large product by substitution

Evaluating a large product by substitution

Secondary 2

TGM Original Questions

Factorise \(4m^2+12m+5\).
Choose a suitable value of \(m\) and hence evaluate \(101\times105\).

Solution:

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Answer:(a) \((2m+1)(2m+5)\); (b) \(10605\).

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