Bài 3: Giari phương trình \(\sqrt{A}\)=B
a> \(\sqrt{3x-1}\)
b> \(\sqrt{-3x+4}\) = 12
c> \(\sqrt{x^2-8x+16}\) = 4
d> \(\sqrt{9\left(x-1\right)}\) = 21
g> \(\sqrt{2-3x}\) = 10
h> \(\sqrt{4x}\) = \(\sqrt{5}\)
i> \(\sqrt{4-5x}\) = 12
p> \(\sqrt{16x}\) = 8
q> \(\sqrt{\left(x-3\right)^2}\) = 3
v> \(\sqrt{\dfrac{-6}{1+x}}\) = 5
w> \(\sqrt{4x-20}-3\)\(\sqrt{\dfrac{x-5}{9}}\) = \(\sqrt{1-x}\)
x> \(\sqrt{4x+8}\) + 2\(\sqrt{x+2}\) - \(\sqrt{9x+18}\) = 1
a'> \(\sqrt{x^2-6x+9}\)+x=11
z> \(\sqrt{16\left(x+1\right)^2}\) - \(\sqrt{9\left(x+1\right)}\) = 4
b'> \(\sqrt{9x+9}\) + \(\sqrt{4x+4}\) = \(\sqrt{x+1}\)