Question

Solve: $\frac{98}{121}{x}^2-\frac{1}{2}=0$

Answer 1

$\frac{98}{121}{x}^2-\frac{1}{2}=0\Rightarrow \frac{98}{121}{x}^2=\frac{1}{2}\Rightarrow x^2=\frac{121}{98\ast 2}\Rightarrow x^2=\frac{121}{196}\Rightarrow x=\frac{11}{14}$