Simplify the radical expression. Indicate if the expression is not a real number.
-$\sqrt { \frac { 441 } { 289 } }$
A) $\frac { 220 } { 144 }$
B) $\frac { 21 } { 18 }$
C) $\frac { 21 } { 17 }$
D) $\frac { 22 } { 17 }$

Question

Quizplus · Accepted Answer

$$\sqrt { \frac { 441 } { 289 } } = \frac{\sqrt{441}}{\sqrt{289}} = \frac{21}{17}$$ 
This expression is a real number.

Simplify the Radical Expression 441289\sqrt { \frac { 441 } { 289 } }289441​​

Simplify the Radical Expression $\sqrt { \frac { 441 } { 289 } }$