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ДетоЧкАа
@ДетоЧкАа
July 2022
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решите уравнения 15х^2-4х-35=0
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Kristinka9889
Квадратное уравнение вида ax^2+bx+c=0 решается через дискриминант.
D= b^2-4*a*c=16-(4*15*(-35)=16+2100=2116
x1,2=-b+-VD/2a=4+-46/2*15=>
x1=4+46/30=50/30
x2=4-46/30=-42/30=1.4
Ответ: 50/30 и 1.4
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Andrey1977
15х^2-4х-35=0
Д=16-4*15*(-35)=2116=46^2
х1=4+46/30=50/30=5/3=1 целая 2/3
х2=4-46/30=-42/30=-7/5=-1 целая 2/5
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Answers & Comments
D= b^2-4*a*c=16-(4*15*(-35)=16+2100=2116
x1,2=-b+-VD/2a=4+-46/2*15=>
x1=4+46/30=50/30
x2=4-46/30=-42/30=1.4
Ответ: 50/30 и 1.4
Д=16-4*15*(-35)=2116=46^2
х1=4+46/30=50/30=5/3=1 целая 2/3
х2=4-46/30=-42/30=-7/5=-1 целая 2/5