Bài 1 : Giải các phương trình sau:
a)\(\sqrt{2x+1}=2\)
b)\(\sqrt{3x}-1=4\)
c)\(\sqrt{16x^2}=12\)
d)\(\sqrt{x^2-4x+4}=1\)
e)\(3\sqrt{x}-2\sqrt{9x}+\sqrt{16x}=5\)
f)\(4\sqrt{3x}-\sqrt{12x}+5\sqrt{27x}=17\)
g)\(4\sqrt{x-5}-\sqrt{4x-20}+\sqrt{16x-80}=2\)
h)\(2\sqrt{x-1}+\sqrt{4x-4}-\sqrt{9x-9}=2\)
i)\(-\sqrt{x+2}-\sqrt{4x+8}-\sqrt{9x+18}=-\sqrt{x+5}\)
k)\(\sqrt{2-x}=\sqrt{x+5}\)
l)\(\sqrt{2-x}=\sqrt{4+x}\)
m)\(x+\sqrt{4x-3}=2\)
n)\(\sqrt{4x^2-4x+1}=\sqrt{\left(x+2\right)^2}\)
o)\(\sqrt{x^2-2x+1}-\sqrt{x^2-6x+9}=0\)
