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The positive square of 7 + √48 is

A. 7 + 2√3

B. 7 + √3

C. 2 + √3

D. 3 + √2

1 Answer

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Best answer

7 + √48

= 7 + √(16×3) = 7 + 4√3 (try to break it in form of (a+b)2)

= (2)2 + (√3)2 + 2×2×√3 = (2+√3)2 = (2+√3) (2+√3).

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