Odpowiedź:
Szczegółowe wyjaśnienie:
Zad.1,114
g.
[tex]\frac{x-2}{x+4} -\frac{5}{6} =0[/tex]
D: x+4≠0
x≠-4 D=R\{-4}
[tex]\frac{x-2}{x+4}=\frac{5}{6}\\6(x-2)=5(x+4)\\6x-12=5x+20\\x=32[/tex]
Zad.1,116
a.
[tex]\frac{3x-4}{2} =\frac{4x-5}{3}[/tex]
D=R
[tex]3(3x-4)=2(4x-5)\\9x-12=8x-10\\x=2[/tex]
c.
[tex]\frac{2}{x^2} =\frac{1}{3}[/tex]
D: x²≠0
x≠0
D=R\{0}
[tex]6=x^2\\x^2-6=0\\(x-\sqrt{6} )(x+\sqrt{6} )=0[/tex]
[tex]x_1=\sqrt{6}[/tex] [tex]x_2=-\sqrt{6}[/tex]
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Odpowiedź:
Szczegółowe wyjaśnienie:
Zad.1,114
g.
[tex]\frac{x-2}{x+4} -\frac{5}{6} =0[/tex]
D: x+4≠0
x≠-4 D=R\{-4}
[tex]\frac{x-2}{x+4}=\frac{5}{6}\\6(x-2)=5(x+4)\\6x-12=5x+20\\x=32[/tex]
Zad.1,116
a.
[tex]\frac{3x-4}{2} =\frac{4x-5}{3}[/tex]
D=R
[tex]3(3x-4)=2(4x-5)\\9x-12=8x-10\\x=2[/tex]
c.
[tex]\frac{2}{x^2} =\frac{1}{3}[/tex]
D: x²≠0
x≠0
D=R\{0}
[tex]6=x^2\\x^2-6=0\\(x-\sqrt{6} )(x+\sqrt{6} )=0[/tex]
[tex]x_1=\sqrt{6}[/tex] [tex]x_2=-\sqrt{6}[/tex]