Предмет: Математика, автор: eltaikozha84

номер 249 7-класс
1) 12a²3ba-2ab3ab²+11aba

Приложения:

eltaikozha84: Помогите

Ответы

Автор ответа: poankkkqqq1

1) 12а²3ba - 2ab3ab² + 11aba = 36a³b - 6a²b³ + 11a²b = -6a²b³ + 36a³b +
+ 11a²b;
2) 2ab²4ab - 3a²8aba - 2abab² = 8a²b³ - 24a⁴b - 2a²b³ = - 24a⁴b + 6a²b³;
3) 1,5xy²(-4)xyz - 4mnk5m²nk = -6x²y³z - 20m³n²k² = -20m³n²k² - 6x²y³z;
4) 4cc²c(-1/4)bc + 5xy²xy² = -bc⁵ + 5x²y⁴.
с инета

eltaikozha84: спс

olegyan2007: спасибо большое

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