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sagdiana1234
@sagdiana1234
July 2022
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Решите уравнение.
а)-20х=1,6х^2
б)х^-11х+30=0
в)3х^+7х-40=0
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Дмитрий1425
1)-20x=8/5x^2
-100x=8x^2
100x-8x^2=0
x(25+2x)=0
x=0
x=-25/2=12,5
2)x^2-11x+30=0
D=-b^2-4ac
x=
x=6x=5[/tex]
3)3x^2+7x-40=0
x=
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Answers & Comments
-100x=8x^2
100x-8x^2=0
x(25+2x)=0
x=0
x=-25/2=12,5
2)x^2-11x+30=0
D=-b^2-4ac
x=x=6x=5[/tex]
3)3x^2+7x-40=0
x=