how to get started

forestcove · #1 Nov 7, 2009, 08:12 AM

how do i work 9g-rm-9m+rg

Unknown008 · Nov 7, 2009, 09:40 AM

Do you have to factorise?

Group what you see are similar in any two terms.

For example, if you had ab + bc + cd, you could see that the first two have b in common, or the last two have c in common. Two different ways are:

b(a+c) + cd --or-- ab + c(b+d)

Try doing the same for your question.



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