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Mathematics 7 Online
OpenStudy (anonymous):

simplify

OpenStudy (anonymous):

|dw:1425644067705:dw|

OpenStudy (anonymous):

@butterflydreamer can you help me

OpenStudy (michele_laino):

here we can write: \[17\sqrt {17} - 9\sqrt {17} = \left( {17 - 9} \right)\sqrt {17} = ...?\]

OpenStudy (anonymous):

so the answer is \[8\sqrt{17}\]

OpenStudy (michele_laino):

that's right!

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