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Nastena0606
@Nastena0606
August 2022
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Помогите решить x^2-2x-3>=0
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lena25073
А=1; б=-2; с=-3
Д=4-4*1*(-3)=16
х1=2+4/2=3
х2=2-4/2=-1
____-1___3___>
+ - +
х€(-беск; -1]; [3; +беск)
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Answers & Comments
Д=4-4*1*(-3)=16
х1=2+4/2=3
х2=2-4/2=-1
____-1___3___>
+ - +
х€(-беск; -1]; [3; +беск)