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in Algebraic Formulae – Expansion of Squares by (47.6k points)
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Which of the options given below is the square of the binomial

(A) 64 - 1/x2

(B) 64 + 1/x2

(C) 64 - 16/x + 1/x2

(D) 64 + 16/x + 1/x2

1 Answer

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Best answer

(C) 64 - 16/x + 1/x2

= (8 - 1/x)2 = 82 - 2 x 8 x 1/2 + (1/x)2 …[(a – b)2 = a2 – 2ab + b2 ]

= 64 - 16x + 1/x2

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