Respuesta :

3(5/6)^2 - 5(5/6) + 6
(5/6)^2 = 5/6 * 5/6 = 25/36
= 3/1 * 25/36 = 75/36
= 5/1 * 5/6 = 25/6
= 6/1 * 25/36 = 150/36

75/36 - 150/36 + 216/36
= 141/36
= 47/12

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