a, \(\sqrt{2\left(x-3\right)}=\dfrac{1}{4}\)
\(\Leftrightarrow2\left(x-3\right)=\dfrac{1}{16}\)
\(\Leftrightarrow x-3=\dfrac{1}{32}\)
\(\Leftrightarrow x=\dfrac{97}{32}\)
Vậy...
b, \(\sqrt{13-2x}=8\)
\(\Leftrightarrow13-2x=64\)
\(\Leftrightarrow2x=-51\)
\(\Leftrightarrow x=\dfrac{-51}{2}\)
Vậy...
c, \(\sqrt{1-5x}=1\)
\(\Leftrightarrow1-5x=1\)
\(\Leftrightarrow5x=0\)
\(\Leftrightarrow x=0\)
Vậy...
b/ \(\sqrt{2\left(x-3\right)}=\dfrac{1}{4}\)
\(\Leftrightarrow2\left(x-3\right)=\dfrac{1}{16}\)
\(\Leftrightarrow x-3=\dfrac{1}{32}\)
\(\Leftrightarrow x=\dfrac{97}{32}\)
c/ \(\sqrt{13-2x}=8\)
\(\Leftrightarrow13-2x=64\)
\(\Leftrightarrow2x=-51\)
\(\Leftrightarrow x=-\dfrac{51}{2}\)
d/ \(\sqrt{1-5x}=1\)
\(\Leftrightarrow1-5x=1\)
\(\Leftrightarrow5x=0\)
\(\Leftrightarrow x=0\)
a, \(\sqrt{2\left(x-3\right)}=\dfrac{1}{4}\)
\(\Rightarrow\sqrt{2x-6}=\dfrac{1}{4}\)
\(\Rightarrow2x-6=\dfrac{1}{16}\)
\(\Rightarrow2x=\dfrac{97}{16}\)
\(\Rightarrow x=\dfrac{97}{32}\)
b, \(\sqrt{13-2x}=8\)
\(\Rightarrow13-2x=64\)
\(\Rightarrow-2x=51\)
\(\Rightarrow x=\dfrac{-51}{2}\)
c, \(\sqrt{1-5x}=1\)
\(\Rightarrow1-5x=1\)
\(\Rightarrow5x=0\)
\(\Rightarrow x=0\)
