The width is is 3 cm and the length is 5 cm, but i don't know how to set it up.
asked Oct 11, 2012 in Algebra 2 Answers by anonymous

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1 Answer

rektangel: area=15=leng*wide

leng=wide+2

wide*(wide+2)=15

wide^2 +2wide -15=0

wide=3 or wide=-5

leng=5

5*3=15
answered Oct 12, 2012 by anonymous
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