B1 Giải các pt: ( Giúp mik nha mik đag vội )
a, \(\frac{3\sqrt{x}-5}{2}\)- \(\frac{2\sqrt{x}-7}{3}\)= \(\sqrt{x}\)-1
b, \(\sqrt{36x-72}\)- 15\(\sqrt{\frac{x-2}{25}}\)= 4(5+\(\sqrt{x-2}\))
B2 Rút gọn
a,\(\frac{\sqrt{m^3}+4\sqrt{mn^2}-4\sqrt{m^2n}}{\sqrt{m^2n}+2\sqrt{mn^2}}\) với m,n>0
b, \(\frac{x\sqrt{x}-1}{x-1}\)
c,\(\sqrt{50x^3y^5}\)- \(\frac{2y^2}{x^2}\)\(\sqrt{32x^7y}\)+ \(\frac{3xy}{2}\)\(\sqrt{2xy^2}\)