Предмет: Алгебра, автор: katyar980

Зависит ли от х значение выражения (х+3)*(х-4)*(х+4)-х*(х^2+х-16)? Найдите значение этого выражения при х=5

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Автор ответа: Кисуня111111111
0
(х+3)*(х-4)*(х+4)-х*(х²+х-16)
(x+3)*(x²+8x+16)-x³+x²-16x
x³+8x²+16x+3x²+24x+48-+16x
10x²+56x+48

10*5²+56*5+48=250+280+48=578
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