1. The length of an illustration board is 5 units more than its width and the area is 126 sq. units. Find its
length.
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1. The length of an illustration board is 5 units more than its width and the area is 126 sq. units. Find its
length.
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Answer:
length: 14
Step-by-step explanation:
width: w
length: w+5
A= lw
126=w(w+5)
126=w²+5w
w²+5w-126=0
(w-14)(w+9)=0