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Adinka00
@Adinka00
July 2022
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1)8x^2+х-75=0
Решите уравнение
2)3х^2-11х-14=0
3)х^2-х-56=0
4)x^2-x-1=0
5)x^2+4x+1=0
6)4x^2-9x-2=0
7)(3x-5)^2-(2x+1)^2=24
8)(3x+10)^2=3(x+10)
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Answers & Comments
Mepkypuu
1)D=1+2400=2401=49^2
x1=(-1-49)/16=-3,125
x2=(-1+49)/16=3
2)D=289=17^2
x1=(11-17)/6=-1
x2=(11+17)/6=4 и 2 третих
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Answers & Comments
x1=(-1-49)/16=-3,125
x2=(-1+49)/16=3
2)D=289=17^2
x1=(11-17)/6=-1
x2=(11+17)/6=4 и 2 третих