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Mathematics 20 Online
OpenStudy (anonymous):

3*(3x+4y)-2*(5x-4y) (x+y) help!

OpenStudy (anonymous):

take it one by one 3*(3x+4y) open brackets

OpenStudy (anonymous):

9x+12y

OpenStudy (anonymous):

cool, now, go for 2*(5x-4y)

OpenStudy (anonymous):

10x-8y :))

OpenStudy (anonymous):

and now? :)

OpenStudy (anonymous):

(10x-8y)* (x+y)

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