Các câu hỏi tương tự
vận dụng bđt để giải Pt sau
\(\sqrt{2x-1}+\sqrt{19-2x}=\frac{6}{-x^2+10x-24}\)\(\left|x+1\right|+\left|x+2\right|+...+\left|x+2005\right|=2006x\)x2=2x8+\(\frac{3}{8}\)\(x+\sqrt{3+\sqrt{x}}=3\)\(8x^2+\sqrt{\frac{1}{x}}=\frac{5}{2}\)
Giải PT: \(\sqrt{x+1}-2\sqrt{4-x}=\frac{5\left(x-3\right)}{\sqrt{2x^2+18}}\)
Giải pt : \(x^2+6x+1=\left(2x+1\right)\sqrt{x^2+2x+3}\)
Giải hpt \(\hept{\begin{cases}\left(\sqrt{y}+1\right)^2+\frac{y^2}{x}=y^2+2\sqrt{x-2}\\x+\frac{x-1}{y}+\frac{y}{x}=y^2+y\end{cases}}\)
giải pt:\(2-\frac{x-1}{x}=\left(\frac{\sqrt[3]{2.x^2+x^3}+x+2}{2x+1}\right)^2\)
giải pt
\(\left(2x+1\right)\sqrt{\frac{x+1}{x}}=x+2+\sqrt[3]{2x^2+x^3}\)
giải pt: \(2-\frac{x-1}{x}=\left(\frac{\sqrt[3]{2.X^2+x^3}+x+2}{2x+1}\right)^2\)
giải pt:
1) \(4\sqrt{\frac{x^2}{3}+4}=1+\frac{3x}{2}+\sqrt{6x}\)
2) \(3\left(\sqrt{2x^2+1}-1\right)=x\left(1+3x+8\sqrt{2x^2+1}\right)\)
3) \(\sqrt{1+x}+\sqrt{1-x}+\frac{x^2}{4}=2\)
giải pt bằng cách đặt ẩn phụ:
a) \(x^3+\sqrt{\left(1-x^2\right)^3}=x\sqrt{\left(2-2x^2\right)}\)
b) \(\frac{9-2x}{\sqrt{\left(4-x\right)}}+\frac{4x+3}{\sqrt{\left(4x+1\right)}}=\frac{15}{2}\)
c) \(\sqrt[3]{\left(7-16x\right)}+2\sqrt{\left(2x+8\right)}=5\)
d) \(5\sqrt{\left(x+1\right)}-2\sqrt[3]{\left(7x+6\right)}=4\)
Giải Pt :
a) \(\frac{1}{1.2}+\frac{1}{2.3}+\frac{1}{3.4}+........+\frac{1}{x\left(x+1\right)}=\frac{\sqrt{2012-x}+2012}{\sqrt{2012-x}+2013}\)
b) \(\sqrt{2x+3}+\sqrt{x+1}=3x+2\sqrt{2x^2+5x+3}-16\)