{x}^(2) = (121)/(196)

Question

`{x}^(2) = (121)/(196)`

Answer 1

`x^2=(121)/(196)\iff x=\pm\sqrt{(121)/(196)}\\\\x=-(√(121))/(√(196))\ \vee\ x=(√(121))/(√(196))\\\\\boxed{x=-(11)/(14)\ \vee\ x=(11)/(14)}\\\\√(a)=b\iff b^2=a\\\\√(121)=11\ \text{because}\ 11^2=121\\\\√(196)=14\ \text{because}\ 14^2=196`