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ramik202
@ramik202
August 2022
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Помогите решить, пожалуйста, хотя бы уравнения )
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lmatem
1) a) x(2x+5)=0-----> x1=0, x2=-2.5
б) D=(-8)^2-4*7*1=36 ----> x1=1, x2=7
2)
3) x1*x2=c, x1+x2=11 Теорема Виета
-3*x2=c, -3+x2=11----> x2=14, c=-3*14=-42
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Answers & Comments
б) D=(-8)^2-4*7*1=36 ----> x1=1, x2=7
2)
3) x1*x2=c, x1+x2=11 Теорема Виета
-3*x2=c, -3+x2=11----> x2=14, c=-3*14=-42