<span>216^6x+1/21 = 1/36;
(6</span>³)^6x =1/36 -1/21 < 0 не имеет решения тк 6 Ю 0
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Наверно
216^((6X+1)/21)=1/36 ;
6^(3(6x+1)/21) =6^ (-2) ;
3(6x+1)/21 = -2;
6x+1 = -14;
x = -5/2.
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24/5 + 19/20 = 96+19 / 20 = 115/20 = 23/4
23/4 * 2 2/3 = 23/4 * 8/3= 46/3=15 1/3
1 кг = 120 орехов
1 мальчик = 2/3 * 120 = 80 орехов
2 мальчик = 1/5 * 80 = 16 орехов
3 мальчик = 120 - (80+16) = 120-96=24 ореха
(x-6)(x^2+6x+36) = x^3 - 6x^2 +6x^2 -36x + 36x - 216 = x^3 - 216