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walia
@walia
July 2022
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Найдите нули функции: 1. y=14+21x; 2. y = x2+10x−11; 3. y=2x+1/(черта)x-2
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manyny06
Verified answer
14+21x=0
21x=-14
x=-14/21=-2/3
x^2+10x-11=0
D=10^2+44=144
x1=(-10+12)/2=1
x2=(-10-12)/2=-11
(2x+1)/(x-2)=0
2x+1=0
2x=-1
x=-0.5
2 votes
Thanks 2
walia
Вам тоже спасибо:))
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Answers & Comments
Verified answer
14+21x=021x=-14
x=-14/21=-2/3
x^2+10x-11=0
D=10^2+44=144
x1=(-10+12)/2=1
x2=(-10-12)/2=-11
(2x+1)/(x-2)=0
2x+1=0
2x=-1
x=-0.5