1.[tex] \frac{12}{7-x} =x[/tex]
2.[tex] \frac{x-3}{x-5} + \frac{1}{x} = \frac{x+5}{x(x-5)}
3. [/tex][tex] \frac{x^{2}-4 }{4x} = \frac{3x-2}{2x} [/tex]
2.[tex] \frac{x-3}{x-5} + \frac{1}{x} = \frac{x+5}{x(x-5)}
3. [/tex][tex] \frac{x^{2}-4 }{4x} = \frac{3x-2}{2x} [/tex]
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1.ОДЗ
7-х=0
х=7
D=49-4*12=1
x₁=(7-1)/2=3
x₂=(7+1)/2=4
2.
ОДЗ
x-5=0
x=5
x=0
D=3+4*10=49
x₁=(3-7)/2=-2
x₂=(3+7)/2=5 не одходит по ОДЗ
3.
ОДЗ
x=0
x₁=0 не подходит по ОДЗ
x₂=6