2/(x^2-9)-6/(3x-x^2)-4/(x^2+3x)=2/(x-3)(x+3)-6/x(3-x)-4/x(x+3)=2/(x-3)(x+3)+6/x(x-3)-4/x(x+3)
теперь к каждому подписываем дополнительный множитель, чтобы сделать одинаковым знаменатели, к первому х, ко второму (х+3), к третьему (х-3)
(2х+6х+18-4х+12)/(х*(х-3)(х+3))=(4х+30)/(х(х-3)(х+3))
больше не знаю как можно упростить, все что получилось)
Автор:
aristidesbov6
Автор:
doogieyg20Добавить свой ответ
1.Разложите многочлен на множители: а) -12а^2+18a^3 b) 2a+4b-ab-2b^2 v) x^2-64y^2 g) -2x^3-28x^2-98x. Решите ,пожалуйста.
2.сократите дробь
a)
49m^2-n^2
_______(деление)
3mn^2-21m^n
b)
81x^2-16
_______(деление)
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помогиитииии!!!!
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