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Algebra 18 Online
OpenStudy (anonymous):

factor show work: 4c+4d-ac-ad=

OpenStudy (butterflydreamer):

to factorise, you want to take out the "common" term. E.g. 4c + 4d, can you see that 4 is common in both 4c and 4d? Therefore, if we factorise out the 4, we will get 4(c + d). So what would you factor out for -ac - ad?

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