Question

Using a suitable identity, evaluate 12².​

Answer 1

Answer:

(10+2)²

10²+2(10)(2)+2²

100+40+4

144

Step-by-step explanation:

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Answer 2

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$\tt{12}^{2} \\ \\ \tt = 12 \times 12 \\ \\ \tt = (10 + 2)(10 + 2 ) \\ \\ \mathfrak{using \: distributive \: property }\\ \\ \tt = 10(10 + 2) + 2(10 + 2) \\ \\ = \tt100 + 20 + 20 + 4 \\ \\ = \huge \tt\underline{ \underline{144}}$