Ответ:
2x + y) (3x - 5y) = 6x² - 7xy - - 5y
3x -> 6x² => 2x
-5y->-5y² => y
(2x + y) (3x - 5y) = 6x² - 10xy + 3xy - 5y² 7xy - 5y² = 6x²
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Ответ:
2x + y) (3x - 5y) = 6x² - 7xy - - 5y
3x -> 6x² => 2x
-5y->-5y² => y
(2x + y) (3x - 5y) = 6x² - 10xy + 3xy - 5y² 7xy - 5y² = 6x²