Answers

2016-06-16T00:22:34+08:00
Let w be the width
l = w + 5
a = 14 m^2

A= lw

A= (w+5)(w)
A= w^2 +5w = 14
A= w^2 + 5w -14 = 0
A= (w+7)(w-2) = 0

w=-7 w= 2

l= 2 + 5
l= 7

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