Giải phương trình:
a) \(\sqrt{x^2-6x+9}=\sqrt{4+2\sqrt{3}}\)
b)\(\sqrt{x^2-2x+1}+\sqrt{x^2+4x+4}=1\)
c) \(\sqrt{x+2\sqrt{x-1}}-\sqrt{x-2\sqrt{x-1}}=\frac{x+3}{2}\)
d) \(\sqrt{x-1+2\sqrt{x-2}}-\sqrt{x-1-2\sqrt{x-2}}=1\)
e) \(\sqrt{x-\sqrt{2x-1}}=\sqrt{2}\)