giai phuong trinh \(\sqrt{\frac{x+7}{x+1}}+8=2x^2+\sqrt{2x-1}\)
2.giai phuong trinh sau:
a.\(\sqrt{\frac{2x-3}{x-1}}=2\)
b.\(\frac{\sqrt{2x-3}}{\sqrt{x-1}}=2\)
giai phuong trinh : \(2x^2\left(5-\sqrt[3]{5x-x^3}\right)=2x^3+17x-8\)
Giai phuong trinh:
b, x2 +4x +5=\(2\sqrt[]{2x+3}\)
1. Giai phuong trinh Giup e vs mn oi
a) \(\sqrt{\frac{2x-3}{x-1}}\)= 2 ;
b) \(\sqrt{4x^2-9=2}\)\(\sqrt{2x+3}\)
c) 2\(\left(\sqrt{\frac{x-1}{4}-3}\right)\)= 2\(\sqrt{\frac{4x-4}{9}}\)-\(\frac{1}{3}\)
d) \(\frac{9x-7}{\sqrt{7}+5}\)= \(\sqrt{7x}+5\)
giai phuong trinh
\(18x^2-2x-\frac{17}{3}+9\sqrt{x-\frac{1}{3}}=0\)
Giai phuong trinh sau
\(X\sqrt{2x-1}-\sqrt{4x^2-1}-0\)
Giai phuong trinh :\(\sqrt{2-x^2+2x}+\sqrt{-x^2-6x+8}=1+\sqrt{3}\)
giai phuong trinh : \(\frac{1}{1+x}+\frac{1}{1+\sqrt{x}}=\frac{2+\sqrt{x}}{2x}\)