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Ответ дан
sasha1235696Sasha
8х+5х+1=0
13х=-1
х=-1/13

Ответ

Ответ дан
parvanaqarabaqli

Ответ:D= 25-4•4•1=25-16=9

X1=(-5+3)/2•4=-1/4

X2=(-5-3)/2•4=-1

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