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Mathematics 17 Online
OpenStudy (anonymous):

how do I use the distributive law to factor 18a+81b

OpenStudy (anonymous):

in reverse... a(b+c) = ab + ac... if you start on the left you can go back to the right. you only need to know what factor ab and ac have in common. here, it's obviously a but with numbers or expressions you have to use your noodle.

OpenStudy (anonymous):

i mean if you start on the right you can go back to the left

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