Question

difference of 9√7 and √28?

Answer 1

\[\sqrt{28}=\sqrt{4(7)}=2\sqrt{7}\]

Answer 2

Does that help?

Answer 3

ummm not really?

Answer 4

So now the problem is :
\[9\sqrt{7}-2\sqrt{7}\]

Answer 5

is it 11 square root of 7?

Answer 6

Does that help?

Answer 7

You subtract to find the difference between two numbers.

Answer 8

oh so square root of 7?

Answer 9

i mean 7 square root of 7?

Answer 10

That's better.