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зикош2
@зикош2
July 2022
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x3+x2=9x+9 помогите пж даю 100 балов
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irreversibility
Verified answer
Х³+х²=9х+9,
х³+х²-9х-9=0,
х²(х+1)-9(х+1)=0,
(х²-9)(х+1)=0,
(х-3)(х+3)(х+1)=0,
х-3=0, х+3=0, х+1=0,
х=0+3, х=0-3, х=0-1,
х=3. х=-3. х=-1.
Ответ: -3; -1; 3.
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Answers & Comments
Verified answer
Х³+х²=9х+9,х³+х²-9х-9=0,
х²(х+1)-9(х+1)=0,
(х²-9)(х+1)=0,
(х-3)(х+3)(х+1)=0,
х-3=0, х+3=0, х+1=0,
х=0+3, х=0-3, х=0-1,
х=3. х=-3. х=-1.
Ответ: -3; -1; 3.