N
ngoc_2000


a. $\sqrt{x-2} + \sqrt{4x-8}$ = 0
b. $\sqrt{x-1}- \sqrt {2x(x-1)}$=0
c. $\sqrt{3x-1}=\sqrt{\sqrt{3}}$
d. (6-2$\sqrt{5})x=\sqrt{5}-1$
b. $\sqrt{x-1}- \sqrt {2x(x-1)}$=0
c. $\sqrt{3x-1}=\sqrt{\sqrt{3}}$
d. (6-2$\sqrt{5})x=\sqrt{5}-1$
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