\(\sqrt{x^2-7x+1}=\sqrt{2x^2-15x+8}\)

\((x^2+x-6)\sqrt{x+1}=0\)

\(x=\sqrt{8x+9}\)

\(\sqrt{3x-5}=x-11\)

\(x+\sqrt{2x^2-14x+13}=5\)

\((x+3)\sqrt{x^3-x+10}=x^2+5x+6\)

\(\sqrt{x+1}-\sqrt{4x-3}=1\)

\(\sqrt{x+1}-\sqrt{2x-5}=\sqrt{x-2}\)

\(\sqrt{2-x}<\sqrt{3x^2-2x-2}\)

\(\sqrt{x-1}<3-x\)

\(\sqrt{x+1}>x-2\)

а) \(\left\{\begin{array}{l}x^3 \cdot \sqrt{x-y}=0 \\ 2 y^2+y=21+2 x y\end{array}\right.\) б) \(\left\{\begin{array}{l}\sqrt{x^2+4 x y-3 y^2}=x+1 \\ x-y=1\end{array}\right.\)

а) \(\sqrt{(x-8)(x-4)}=\sqrt{x-8}\)

б) \(\left(9 x^2+6 x-3\right) \sqrt{9 x^2+18 x+5}=0\)