Ответ: 21
Объяснение:
6/x(x+1) - (x-6)/x(x-1) + 10/(x-1)(x+1) =0
(6(x-1)-(x+1)(x-6)+10x) /x(x+1)(x-1) = 0
(6x-6-x^2 +5x+6+10x) /x(x+1)(x-1) =0
(21x-x^2)/ x(x+1)(x-1) =0 x(21-x) /x(x+1)(x-1)=0, 21-x=0, x=21
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Answers & Comments
Ответ: 21
Объяснение:
6/x(x+1) - (x-6)/x(x-1) + 10/(x-1)(x+1) =0
(6(x-1)-(x+1)(x-6)+10x) /x(x+1)(x-1) = 0
(6x-6-x^2 +5x+6+10x) /x(x+1)(x-1) =0
(21x-x^2)/ x(x+1)(x-1) =0 x(21-x) /x(x+1)(x-1)=0, 21-x=0, x=21