giai p.t :\(\sqrt{\frac{x^3+1}{x+3}}+\sqrt{x+1}=\sqrt{x^2-x+1}+\sqrt{x+3}\)
giai p.t \(\frac{36}{\sqrt{x-2}}+\frac{4}{\sqrt{y-1}}=28-4\sqrt{x-2}-\sqrt{y-1}\)
giai p.t :\(\sqrt{x}+2\sqrt{x+3}=x+4\)
giai p.t :\(\sqrt{2x^2+x+6}+\sqrt{x^2+x+2}=x+\frac{4}{x}\)
giai p.t : \(\sqrt[3]{1-x}+\sqrt[3]{1+x}=1\)
giai p.t : \(\frac{1}{x}+\frac{1}{\sqrt{2-x^2}}=2\)
giai p.t : \(\sqrt{x+1}-\sqrt{x-7}=\sqrt{12-x}\)
giai pt sau
\(\sqrt{3x-1}-\sqrt{x+2}.\sqrt{3x^2+7x+2}+4=4x-2\)
\(x^2-5x+3.\sqrt{2x-1}=2.\sqrt{14-2x}+5\)
\(\left(x+1\right)\left(x+4\right)-3\sqrt{x^2+5x+2}=6\)
1)Giai phương trình
a) (2\(\sqrt{x}\)+3)(\(\sqrt{x}\)-1)-5= 2x-4
b) x\(\sqrt{x}\)-8 = 3\(\sqrt{x}\) (\(\sqrt{x}\)-2)
2) Cho biểu thức: M= 2y-3x\(\sqrt{y}\) + x2
a) Phân tích M thành nhân tử
b) Tính giá trị M khi x = 2; y= \(\dfrac{18}{4+\sqrt{7}}\)