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Mathematics 10 Online
OpenStudy (anonymous):

(x+1)(x-1)

OpenStudy (tennistar):

difference of two squares

OpenStudy (tennistar):

|dw:1340744393319:dw|

OpenStudy (anonymous):

what about (x+y)(x-y)

OpenStudy (tennistar):

|dw:1340744483245:dw|

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