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seriojka2002
@seriojka2002
March 2022
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Решите и нарисуйте график плиз
-x^2+2x-3>0
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Ккалерия
Умножаем на -1 и получаем:
x^2+2x-3=0
Д=2^2-4*1*(-3)=4+12=16=4^2
х1=-(2-4)/2=-3
х2=(-2+4)/2=1
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Answers & Comments
x^2+2x-3=0
Д=2^2-4*1*(-3)=4+12=16=4^2
х1=-(2-4)/2=-3
х2=(-2+4)/2=1