giải phương trình
a. \(\sqrt{x-1}+\sqrt{x+3}+2\sqrt{\left(x-1\right)\left(x^2-3x+5\right)}=4-2x\)
b.\(\sqrt{x-2010}+\sqrt{y-2011}+\sqrt{x+2012}=\frac{1}{2}\left(x+y+z\right)-300\)
Giải phương trình:
\(\sqrt{x+1}+\sqrt{x+3}+2\sqrt{\left(x-1\right)\left(x^2-3x+5\right)}=4-2x\)
Mình rút gọn như thế này đúng không nhỉ?
\(P=\left(2-\frac{\sqrt{x}-1}{2\sqrt{x}-3}\right):\left(\frac{6\sqrt{x}+1}{2x-\sqrt{x}-3}+\frac{\sqrt{x}}{\sqrt{x}+1}\right)\)
\(P=\left[\frac{2\left(2\sqrt{x}-3\right)}{2\sqrt{x}-3}-\frac{\sqrt{x}-1}{2\sqrt{x}-3}\right]:\left[\frac{6\sqrt{x}+1}{\left(\sqrt{x}+1\right)\left(2\sqrt{x}-3\right)}+\frac{\sqrt{x}\left(2\sqrt{x}-3\right)}{\left(\sqrt{x}+1\right)\left(2\sqrt{x}-3\right)}\right]\)
\(P=\left(\frac{4\sqrt{x}-6}{2\sqrt{x}-3}-\frac{\sqrt{x}-1}{2\sqrt{x}-3}\right):\left(\frac{6\sqrt{x}+1}{\left(\sqrt{x}+1\right)\left(2\sqrt{x}-3\right)}+\frac{2x-3\sqrt{x}}{\left(\sqrt{x}+1\right)\left(2\sqrt{x}-3\right)}\right)\)
\(P=\left(\frac{4\sqrt{x}-6-\sqrt{x}+1}{2\sqrt{x}-3}\right):\left(\frac{6\sqrt{x}+1+2x-3\sqrt{x}}{\left(\sqrt{x}+1\right)\left(2\sqrt{x}-3\right)}\right)\)
\(P=\frac{3\sqrt{x}-5}{2\sqrt{x}-3}:\frac{2x+3\sqrt{x}+1}{\left(\sqrt{x}+1\right)\left(2\sqrt{x}-3\right)}\)
\(P=\frac{3\sqrt{x}-5}{2\sqrt{x}-3}.\frac{\left(\sqrt{x}+1\right)\left(2\sqrt{x}-3\right)}{2x+3\sqrt{x}+1}\)
\(P=\left(3\sqrt{x}-5\right).\frac{\left(\sqrt{x}+1\right)}{2x+3\sqrt{x}+1}\)
\(P=\frac{3x+3\sqrt{x}-5\sqrt{x}-5}{2x+3\sqrt{x}+1}\)
\(P=\frac{3x-5\sqrt{x}-5}{2x+1}\)
giải phương trình
a. \(x^2+2x+7=3\sqrt{\left(x^2+1\right)\left(x+3\right)}\)
b. \(\sqrt{3x-1}+\sqrt{2-x}=3\)
c. \(\sqrt{x+9}+2016\sqrt{x+6}=2016+\sqrt{\left(x+9\right)\left(x+6\right)}\)
giải phương trình: \(\frac{\left(\sqrt{x+1}\right)^2}{\sqrt{x}}=6\sqrt{x}-3-\sqrt{x-4}\)
\(A=\left(\frac{1}{\sqrt{x+1}}+\frac{1}{\sqrt{x+1}}\right)^2\cdot\frac{x^2-1}{2}-\sqrt{1-x^2}\)
1 tìm đkxđ
2 rút gọn a
3 giải phương trình theo x khi A=-2
Giải phương trình:
\(\frac{x^2}{2}-\frac{y^2}{2}+x+2y+\frac{1}{2}=\sqrt{\left(x^2+2x+3\right)\left(-y^2-4y-2\right)}\)
Giải các hệ phương trình :
a) \(\left\{{}\begin{matrix}2\sqrt{x-1}-\sqrt{y-1}=1\\\sqrt{x-1}+\sqrt{y-1}=2\end{matrix}\right.\)
b) \(\left\{{}\begin{matrix}\left(x-1\right)^2-2y=2\\3\left(x-1\right)^2+3y=1\end{matrix}\right.\)
Giải phương trình: \(\sqrt{x\left(x-1\right)}+\sqrt{x\left(x+2\right)}=2x\)
