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Let weigth of rectangle be w
length of rectangle be 2w−4
Area of rectangle =70 sq. feetask
w=−5 is not possible [width cannot be negtive]
⇒width of rectangle=7ft
⇒Length of rectangle=(2×7)−4
Let w−widthArea=(length)(width)(2w−4)(w)=702w2−4w=70w2−2w=35w2−2w−35=0(w−7)(w+5)=0So w=7 or w=−5
w=−5 isn't viable because measurements have to be above zero.
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