Предмет: Алгебра, автор: denistyneve

Найди значение выражения
−2x(x 2 −x+3)+x(2x 2 +x−5) при x = 3x=3

Ответы

Автор ответа: binamaksimchuk

1

Ответ:

Объяснение:

−2x(x² −x+3)+x(2x² +x−5) = -2х³+2х²-6х+2х³+х²-5х=3х²-11х

при x = 3, 3х²-11х=3*3²-11*3=27-33= -6

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