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Mathematics 6 Online
OpenStudy (anonymous):

FIND THE DIFFRENCE

OpenStudy (anonymous):

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

OpenStudy (nubeer):

126

OpenStudy (anonymous):

9 square root 7 and square root 28?

OpenStudy (nubeer):

ya wht about it?

OpenStudy (anonymous):

126 isnt even one of the answer choices

OpenStudy (nubeer):

thn wat are ur choices

OpenStudy (anonymous):

\[7\sqrt{7}\]

OpenStudy (anonymous):

\[11\sqrt{7}\]

OpenStudy (anonymous):

\[3\sqrt{5} + 10\sqrt{2}\]

OpenStudy (nubeer):

hmm i dnt think it's any of the choice.. then something wrong with the question or the options.. the question is not tricky just put it same way in calculator and u will get 126

OpenStudy (anonymous):

\[9\sqrt{7}- \sqrt{28}= 9\sqrt{7} - 2\sqrt{7} =\]

OpenStudy (nubeer):

lol how would i know there is a negativee sign in middle.

OpenStudy (anonymous):

28 = 4 x 7 you can square the 4 not the 7 so the 7 stays inside the square root.

OpenStudy (anonymous):

Well it did said find the difference

OpenStudy (anonymous):

If you subtract then you will get the answer =]

OpenStudy (anonymous):

Did you get it?

OpenStudy (anonymous):

yes thank you!

OpenStudy (anonymous):

no problem ^^

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