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Mathematics 9 Online
OpenStudy (anonymous):

(5x+7y)(5x-7y)

OpenStudy (anonymous):

Multiply the First two terms together, then the Outside two terms, then the Inside two terms, then the Last two terms together. FOIL :)

OpenStudy (anonymous):

25x^2-35xy+35xy-49y^2

OpenStudy (anonymous):

25x^2-49y^2

OpenStudy (anonymous):

That it?

OpenStudy (anonymous):

yeap good job

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