Вопрос школьника по предмету Алгебра
приведите дроби к общему знаменателю: х+2х-1 и х+1х-1; х-3х+3 и хх-3; 3+хх-5 и хх-3; х+1х^2-2х и 4+хх^2-4. желательно напишите в листочек пж
Ответ учителя по предмету Алгебра
1. В первом случае все уже приведено (х-1)
2. (х+3)(х-3)
3. (х-5)(х-3)
4. х^2-2х=х(х-2)
х^2-4=(х-2)(х+2)
Общий знаменатель х(х^2-4)
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