Giai phuong trinh sau:
\(x^2+2x\)= \(\sqrt{2x^2+4x+8}+20\)
Giai phuong trinh sau: \(\sqrt{x}-\sqrt{x+1}-\sqrt{x+4}+\sqrt{x+9}=0\)
Giai phuong trinh sau: \(\sqrt{x}-\sqrt{x+1}-\sqrt{x+4}+\sqrt{x+9}=0\)
Giai phuong trinh ; 2\(\sqrt{x^2-x}-2\sqrt{x}\sqrt{2x-1}+3x=1\)
giai phuong trinh \(\sqrt{\frac{x+7}{x+1}}+8=2x^2+\sqrt{2x-1}\)
Giai phuong trinh :\(\sqrt{2-x^2+2x}+\sqrt{-x^2-6x+8}=1+\sqrt{3}\)
giai phuong trinh \(\sqrt{x^2+2x}-x-1+\frac{2\left(x-1\right)}{\sqrt{x^2+2x}}=0\) (Nguyễn Du BMT 2017 -2018)
giai phuong trinh:\(\sqrt{4x^2+5x+1}\) -2\(\sqrt{x^2-x-1}\)=3-9x
Giai phuong trinh: \(\sqrt{2x-1}-2\sqrt{x-1}=-1\)