



 
Hi Natalie, If I understand this correctly your rectangular pool is to have an area of $5.70 m^{2}.$The pools is $l$ meters by $w$ meters and $l$ is 2 meters longer than $w.$ Since the length is $l$ meters the width $w$ must be $l2$ meters. The area is $l$ times $w$ and hence \[l \times (l  2) = 5.70\] Solve for $l.$ Make sure you check your answer. Penny  


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