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01-03-2017
Mathematics

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Simplify: 3r+n²-r+5-2n+2

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Аноним Аноним

01-03-2017

3r+n2−r+5−2n+2=3r+n2+−r+5+−2n+2=3r+n2+−r+5+−2n+2=(n2)+(−2n)+(3r+−r)+(5+2)=n2+−2n+2r+7
=n2−2n+2r+7

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Аноним Аноним

01-03-2017

3n+n^2-r+5-2n+2
5+2=7
3n+2n=5n
n^2 -r +5n +7
((IDK what order the variables are suppose to go in put i think I got it in the right order.))

Answer Link

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