Question

Find the difference of 9 radical 7 and radical 28.
A.7 radical 7
B.11 radical 7
C.5 radical 7

Answer 1

\[9\sqrt{7} - \sqrt{28}\] ?

Answer 2

so C

Answer 3

\[7\sqrt{7}\]

Answer 4

\[9\sqrt{7} and \sqrt{28}\]

Answer 5

oh lol 9-2 = 7 so A

Answer 6

LOl.

Answer 7

\[9\sqrt{7} - \sqrt{4*7} = 9\sqrt{7} - 2\sqrt{7} = 7\sqrt{7}\]