Question

State whether true or false:

$x^2=11$, then $x=\sqrt{11}$

• A. True
• B. False

Answer 1

The correct option is B False

FALSE:

Even exponents hide the sign of the original number, because they always result in a positive value. If $x^2=11$, then $\left|x\right|=\sqrt{11}$. Thus, $x$ could be either $\sqrt{11}$ or $-\sqrt{11}$