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Mathematics 10 Online
OpenStudy (anonymous):

Rationalize the denominator and simplify. Assume that variables represent positive values.

OpenStudy (anonymous):

|dw:1398015863379:dw|

OpenStudy (anonymous):

What's the denominator ?

OpenStudy (anonymous):

use conjungate

OpenStudy (anonymous):

I guess 9-|dw:1398016787459:dw|

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