giải pt :
a) \(\sqrt{x-1}+\sqrt{x^3+x^2+x+1}=1+\sqrt{x^4-1}\)
b0 \(4\sqrt{x+1}=x^2-5x+14\)
c) \(2x+3\sqrt{4-5x}+\sqrt{x+2}=8\)
d) \(\dfrac{x^2+x}{\sqrt{x^2+x+1}}=\dfrac{2-x}{\sqrt{x-1}}\)
Giải pt
a )\(\sqrt{\dfrac{x-1}{4}}-3=\sqrt{\dfrac{4x-4}{9}}\)
b) \(\sqrt{x^2-4x+4}+\sqrt{x^2+6x+9}=x-3\)
c) \(\sqrt{\dfrac{2x-3}{x-1}}=2\)
Giải pt:
\(\sqrt{x+1+\sqrt{x+\dfrac{3}{4}}}+x=\dfrac{1}{2}\)
Giải PT:
\(\sqrt{x^2+3x}+2\sqrt{x+2}=2x+\sqrt{x+\dfrac{6}{x}+5}\)
Giải PT: \(\sqrt{x^2+3x}+2\sqrt{x+2}=2x+\sqrt{x+\dfrac{6}{x}+5}\)
Giải pt:
\(x^2+2x\sqrt{x+\dfrac{1}{x}}=8x-1\)
Giải pt:
\(\sqrt{-x^4+3x-1}+\sqrt{2x^2-3x+2}=x^4-x^2-2x+4\)
giải pt sau
\(\left(\dfrac{\sqrt{x}-1}{x-2\sqrt{x}+1}-\dfrac{2}{\sqrt{x}}\right):\dfrac{2-\sqrt{x}}{x-1}\)
Giải PT: \(\sqrt[4]{x}=\dfrac{3}{8}+2x\)