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b - 6-35b+b²/b²- 36 = b³-36b-6+35b-b²/b²-36 = b³-b²-b-6/b²-36 = b²(b - 1)-(b+6)/(b-6)(b+6)

1) 3,5²(3,5-1)-(3,5+6)/(3,5-6)(3,5+6) = 12,25×2,5-9,5/-2,5×9,5 = 30,625-9,5/-23,75 = 21,125/-23,75

2) 2,5²(2,5-1)-(2,5+6)/(2,5-6)(2,5+6) = 6,25×1,5-8,5/-3,5×8,5 = 9,375-8,5/-29,75 = 0,875/-29,75