Question

30 POINTS!!!

Answer 1

Answer:

A, C, & D

Step-by-step explanation:

A square root has the form $\sqrt[2]{x} = x^{1/2}$ and can be represented in exponential form. Let's convert all the expressions to $\sqrt{x}$ this form. 4 square root 5 is $4\sqrt{25} =\sqrt{16*5}=\sqrt{80}$

A. $2\sqrt{20} =\sqrt{4*20}=\sqrt{80}$

B. $6^{1/2}-5^{1/2} =\sqrt{6}-\sqrt{5}$

C. $3*5^{1/2}+5^{1/2} =3\sqrt{5}+\sqrt{5}=4\sqrt{5}=\sqrt{16*5}=\sqrt{80}$

D. $4*5^{1/2}=4\sqrt{5}=\sqrt{16*5}=\sqrt{80}$

E.$2\sqrt{10} =\sqrt{4*10}=\sqrt{40}$

F.  $3*5^{1/2}=3\sqrt{5}=\sqrt{9*5}=\sqrt{45}$