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Mathematics 11 Online
OpenStudy (anonymous):

perform the indicated operation: z^2-y^2/a^2-b^2 ÷ z+y/a-b

OpenStudy (anonymous):

You will need to use the difference of squares formula for this

OpenStudy (anonymous):

Do you know it?

OpenStudy (anonymous):

I post an answer, but it is not appearing...

OpenStudy (anonymous):

Indeed. Don't post answers please.

OpenStudy (anonymous):

Can't answer questions?

OpenStudy (anonymous):

Give help, not answers.

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