Tìm x:
a)\(11-\sqrt{x}=\sqrt{0}\)
b)\(3\sqrt{x}-1=23\)
c)\(\frac{5}{12}\sqrt{x}-\frac{1}{6}=\frac{1}{3}\)
d)\(\sqrt{x+1}+2=0\)
e)\(9x^2-4=0\)
g)\(2x^2+0,82=1\)
h)\(-\sqrt{x}=\left(-7\right)^2\)
i)\(5\sqrt{x+1}+2=0\)
k)\(4\sqrt{x}-1=0\)
l)\(\sqrt{2x-1}=29\)
m)\(x^2=0,81\)
n)\(\left(x-1\right)^2=1\frac{9}{16}\)
f)\(-5\sqrt{x}=2,5\)
z)\(\sqrt{3-2x}=1\)
y)\(\sqrt{x}-x=0\)
d) \(\sqrt{x+1}+2=0\)( ko tìm đc )
e) \(9x^2=4\Leftrightarrow x^2=\frac{4}{9}\Leftrightarrow x=\pm\sqrt{\frac{4}{9}}\)
g) \(2x^2=\frac{9}{50}\Leftrightarrow x^2=\frac{9}{100}\Leftrightarrow x=\pm\sqrt{\frac{9}{100}}\)
a) \(121-x=0\Rightarrow x=121\)
b) \(3\sqrt{x}=24\Leftrightarrow\sqrt{x}=8\Leftrightarrow x=64\)
c) \(\frac{5}{12}\sqrt{x}=\frac{1}{2}\Leftrightarrow\sqrt{x}=\frac{6}{5}\Leftrightarrow x=\frac{36}{25}\)
h) ko có x thỏa mãn
i) ko giải đc
l) \(2x-1=841\Leftrightarrow2x=842\Leftrightarrow x=421\)
m) \(x^2=0,81\Leftrightarrow x=\pm0,9\)
n) \(\left(x-1\right)^2=1\frac{9}{16}\Leftrightarrow x-1=\frac{5}{4}\Leftrightarrow x=\frac{9}{4}\)
f) ko giải đc
z) \(3-2x=1\Leftrightarrow2x=2\Leftrightarrow x=1\)
y) \(\Leftrightarrow\sqrt{x}\left(1-\sqrt{x}\right)=0\Leftrightarrow\left\{{}\begin{matrix}\sqrt{x}=0\\1-\sqrt{x}=0\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=0\\x=1\end{matrix}\right.\)
