Posted by Kenny on Tuesday, May 31, 2011 at 12:18pm.
I am not a teacher but this is how I would go about it :)
12x + 13y(12+6)
=12x + 13y(18)
=12x + 234y
=6(2x + 39y)
You firstly add what is in the bracket and then multiply it by what stands in fron of the bracket. Then you can take the common factor in front of the bracket just to make it look nicer ;)
Hope it helps =)
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