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hdbdbf
@hdbdbf
June 2022
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легкие уравнения срочно нужно
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Эдвайна
2. 12х^2-12=0
12х^2=12
х^2=1
х=+-√1
Ответ: +-√1
3. 1/2х^2+х-6=0
D=b^2-4ac=1^2-4•1/2•(-6)=1+2•6=1+12=13(D>0, 2k)
x1=(-1+ √13)/1
x2=(-1-√13)/1
Ответ: x1=(-1+ √13)/1; x2=(-1-√13)/1.
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Answers & Comments
12х^2=12
х^2=1
х=+-√1
Ответ: +-√1
3. 1/2х^2+х-6=0
D=b^2-4ac=1^2-4•1/2•(-6)=1+2•6=1+12=13(D>0, 2k)
x1=(-1+ √13)/1
x2=(-1-√13)/1
Ответ: x1=(-1+ √13)/1; x2=(-1-√13)/1.