Question

Which expression is equal to 354−−√−424−−√ ? 6√ −6√ −116√ 116√?

Answer 1

Answer:

Its square root 6 so A.

Step-by-step explanation:

Answer 2

$3 \sqrt{54} -4 \sqrt{24} =3 \sqrt{9\times6} -4 \sqrt{4\times6} \\ \\ =9 \sqrt{6} -8 \sqrt{6} = \sqrt{6} \\ \\ \therefore3 \sqrt{54} -4 \sqrt{24}=\bold{ \sqrt{6} }$