Answer
$\frac{\sqrt 31}{3}$ Not Complete
$7\sqrt\frac{6}{11} $ Not Complete
$-5\sqrt 175$ Not Complete
25 is the square factor of 175
Work Step by Step
$\frac{\sqrt 31}{3}$
This expression is complete because there are no fractions in $\sqrt 31$, there are no square roots on the denominator and there are no square factors for 31
$7\sqrt\frac{6}{11} $
This expression is not complete because there is a fraction in the square root
$-5\sqrt 175$
This is not a complete expression because there is a square factor of 175
To find the square factor of 175 we find its factors:
$175 = 7\times25 $
$= 7\times5^{2}$
Therefore 25 is the square factor of 175
