Mathematics: Solve the equation without the use of a calculator. ! ! -7x=x^3+8x^2

Solve the equation without the use of a calculator.

Ответ:

iancuteodora30

12.03.2022

$-7x=x^3+8x^2\\ x^3+8x^2+7x=0\\ x(x^2+8x+7)=0\\ x(x^2+x+7x+7)=0\\ x(x(x+1)+7(x+1))=0\\ x(x+7)(x+1)=0\\ x=0 \vee x=-7 \vee x=-1$

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Ответ:

smartowl101

11.10.2022

Mathematics

29.90
If you divide earnings with hours you’ll get the ) !

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Solve the equation without the use of a calculator. ! ! -7x=x^3+8x^2

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