Question

expand using suitable identity (6-7) 2​

Answer 1

Answer:

$(6 - 7)^{2}$

$(a-b)^{2} = a^{2} - 2ab + b^{2}$

$(6)^{2} - 2(6) (7) + (7)^{2}$

36 - 84 + 49

-48 + 49

= 1

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Answer 2

Answer:

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