Question

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$12^{2} - 1 \\ {\rm{answer \: please}}$
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Answer 1

Answer:

12 x 12 - 1

144 - 1

143

............

Answer 2

Answer:

${12}^{2} - 1 \\ \\ = > {12}^{2} = 144 \\ \\ = > 144 - 1 \\ \\ = 143$

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