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madinanatbieva
@madinanatbieva
July 2022
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Решите уравнение через дескриминат: 7х - х в квадрате=10
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litanalove
7x-x^2-10=0 *(-1)
x^2-7x+10=0,
(a=1,b=-7,c=10)
D=b^2-4ac
D=49-40=9=3^2
x1,x2=(-b+-корень из D)/2a
x1=(7+3)/2=5
x2=(7-3)/2=2значок ^ обозначает в степени
1 votes
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ХимБио2
7x-x^2=10
x^2-7x+10=0
D=49-4*1*10=49-40=9
√D=√9=3
x1=
x2=
0 votes
Thanks 0
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Answers & Comments
x^2-7x+10=0,
(a=1,b=-7,c=10)
D=b^2-4ac
D=49-40=9=3^2
x1,x2=(-b+-корень из D)/2a
x1=(7+3)/2=5
x2=(7-3)/2=2значок ^ обозначает в степени
x^2-7x+10=0
D=49-4*1*10=49-40=9
√D=√9=3
x1=
x2=