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Mathematics 9 Online
OpenStudy (anonymous):

Lost in the algebra for this problem

OpenStudy (anonymous):

OpenStudy (anonymous):

Ill be posting it in one sec, sry.

OpenStudy (anonymous):

how would you simply this \[(5/x -2) -2 ALL OVER 5\]

OpenStudy (anonymous):

thats all over 5 by the way

OpenStudy (anonymous):

\[\frac{5}{x-2} -2 \over 5\] I would start by multiplying the top and bottom by (x-2) to get rid of the complex fraction.

OpenStudy (anonymous):

So multiply your fraction by 1 at it will be the same thing. Anything over itself is 1 so we have: \[{\frac{5}{x-2} -2 \over 5} = {\frac{5}{x-2} -2 \over 5} \cdot \frac{x-2}{x-2} = ?\]

OpenStudy (anonymous):

o I see. all i needed was that starting point, thanks

OpenStudy (anonymous):

Whenever you have a complex fraction, multiply the top and bottom of the 'outer' fraction by the LCD of all the 'inner' fractions.

OpenStudy (anonymous):

It'll simplify things nicely.

OpenStudy (anonymous):

thx

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