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OtlichnikSpit
@OtlichnikSpit
July 2022
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СРОЧНО решите дз по алгебре 5-7 задание
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parus77
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5. А-3 Б-2 В-1
7. х² (х-7у)(х+7у)
х²\(х²+7ху): х\(х²-49у²)=------------ * --------------------=сократим(х+7у) и (х+7у)
х(х+7у) х
и х² и х и х получим = х-7у подставим значения х и у в (х-7у)
3-7√2 - 7*(9-√2)=3-7√2-63+7√2=3-63=-60
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5. А-3 Б-2 В-17. х² (х-7у)(х+7у)
х²\(х²+7ху): х\(х²-49у²)=------------ * --------------------=сократим(х+7у) и (х+7у)
х(х+7у) х
и х² и х и х получим = х-7у подставим значения х и у в (х-7у)
3-7√2 - 7*(9-√2)=3-7√2-63+7√2=3-63=-60