Question

Tìm x biết

\(\left(\frac{1}{x}-\frac{2}{3}\right)^2-\frac{1}{16}=0\)

Answer 1

(1/x-2/3)^2-1/16=0

=> (1/x-2/3)^2=1/16

=>1/x-2/3=1/4

=> 1/x=11/12

=>x=12/11

Answer 2

\(\Rightarrow\left(\frac{1}{x}-\frac{2}{3}\right)^2=\frac{1}{16}\Rightarrow\frac{1}{x}-\frac{2}{3}=\frac{1}{4}\Rightarrow\frac{1}{x}=\frac{1}{4}+\frac{2}{3}=\frac{11}{13}\Rightarrow x=\frac{13}{11}\)

Answer 3

\(\left(\frac{1}{x}-\frac{2}{3}\right)^2-\frac{1}{16}=0\)

\(\left(\frac{1}{x}-\frac{2}{3}\right)^2-\frac{1}{16}=0\Leftrightarrow\frac{1}{x}-\frac{2}{3}=-\frac{1}{4}\Rightarrow\frac{1}{x}=\frac{5}{12}\Leftrightarrow12=5x\Rightarrow x=\frac{12}{5}\)

\(\left(\frac{1}{x}-\frac{2}{3}\right)^2-\frac{1}{16}=0\Leftrightarrow\frac{1}{x}-\frac{2}{3}=\frac{1}{4}\Leftrightarrow\frac{1}{x}=\frac{11}{12}\Leftrightarrow12=11x\Leftrightarrow x=\frac{12}{11}\)

Answer 4

<=>1/x-2/3=1/4

<=>1/x=1/4+2/3=11/12

<=>x=12/11