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Mathematics 9 Online
OpenStudy (anonymous):

Simplify...

OpenStudy (anonymous):

\[5/4x^2y -y/14xz\]

Directrix (directrix):

Is this (5/4) [ (4x^2) y] - (y/14) xz ?

OpenStudy (anonymous):

No. It is just as it looks.

OpenStudy (anonymous):

Directrix (directrix):

It looks as if the common denominator will be 28 x^2 y z. The first rational expression would be: 7z (5) / (28 x^2 yz. The second will be y(2yz) / (28 x^2 yz . There's the negative sign to consider shortly. Do agree with these rewrites of the two fractions?

OpenStudy (anonymous):

Yes.

OpenStudy (anonymous):

Except the second should be 4(2xy) correct?

Directrix (directrix):

Yes.

Directrix (directrix):

I guess we can simplify now.

Directrix (directrix):

7z (5) / (28 x^2 yz) - 4(2xy) / (28 x^2 yz) =

OpenStudy (anonymous):

35x-8xy/28x^2yz

Directrix (directrix):

Are we fiinished? :)

OpenStudy (anonymous):

I believe so!

Directrix (directrix):

OK

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