Question

simplify the radical expression sqrt20

Answer 1

How would you go about doing this?

Answer 2

im not sure

Answer 3

\[Hint:~~20=2^2 \times 5\]

Answer 4

so squareroot 2x 5?

Answer 5

I am going to give you an example.
\[\sqrt{48}=\sqrt{16 \times 3}=\sqrt{4^2 \times 3}=\sqrt{4^2} \times \sqrt{3}=4\sqrt{3}\]So,
\[\sqrt{20}=\sqrt{4 \times 5}=\sqrt{2^2 \times 5}=??\]

Answer 6

Can you finish the problem based on the example ?

Answer 7

2sqareroot5?

Answer 8

Yes.. that's right !!

Answer 9

Thank you :)

Answer 10

do you think you could help with another one?