A clothing store has a rectangular clearance section with a length that is twice the width w. During a sale, the section is expa
nded to an area of (2w^2 + 11w + 12) ft^2. Find the amount of the increase in the length and width of the clearance section.
1 answer:
Answer:
see the explanation
Step-by-step explanation:
step 1
The original area of the rectangular clearance section is equal to
----> equation A
we know that
The length is twice the width
----> equation B
substitute equation B in equation A


step 2
During a sale, the section is expanded to an area of

so
To find out the amount of the increase in the length and width of the clearance section, subtract the areas

therefore
The amount of the increased area is 
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