Rút gọn các biểu thức sau:
\(\begin{align} & 1)\ \ A=4\sqrt{2}-3\sqrt{8}+\sqrt{18}. \\ & 2)\ \ B=\left( \frac{x-2\sqrt{x}}{x-4}-\frac{2}{\sqrt{x}+2} \right):\left( 1-\frac{4}{\sqrt{x}+2} \right),\ \ \left( x\ge 0,\ x\ne 4 \right). \\ \end{align}\)
A.\(A=\sqrt{3}\)
\(B=11\)
B.\(A=\sqrt{2}\)
\(B=3\)
C.\(A=\sqrt{3}\)
\(B=1\)
D.\(A=\sqrt{2}\)
\(B=1\)
\(\begin{align} & 1)\ \ A=4\sqrt{2}-3\sqrt{8}+\sqrt{18}. \\ & 2)\ \ B=\left( \frac{x-2\sqrt{x}}{x-4}-\frac{2}{\sqrt{x}+2} \right):\left( 1-\frac{4}{\sqrt{x}+2} \right),\ \ \left( x\ge 0,\ x\ne 4 \right). \\ \end{align}\)
A.\(A=\sqrt{3}\)
\(B=11\)
B.\(A=\sqrt{2}\)
\(B=3\)
C.\(A=\sqrt{3}\)
\(B=1\)
D.\(A=\sqrt{2}\)
\(B=1\)
Loga
Hóa Học lớp 12
