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|dw:1354222764363:dw|
so w(w+4)=77

soould be the width and length

yes, so do you know how to solve this equation above? that will give you your width

no

would it be 16

sorry 8

have you learned how to factor?

no

subtract 77 from both sides and your equation is now w^2+4w-77=0

Now you must factor it. When I factor it I get (w+11)(w-7)=0