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viktoria1885
@viktoria1885
October 2021
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Решите квадратной неравенство x2 - 3x -10 < 0
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neloh25
X²-3x-10<0
x²-3x-10=0
Д=b²-4ac= 9-4*1*(-10)=9+40=49
x1 =-2
x2=5
x принадлежит (-2;5)
9 votes
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Answers & Comments
x²-3x-10=0
Д=b²-4ac= 9-4*1*(-10)=9+40=49
x1 =-2
x2=5
x принадлежит (-2;5)