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kvasek [131]
3 years ago
7

Could someone help me figure this out?

Mathematics
1 answer:
Zolol [24]3 years ago
3 0

Answer:

The area of a rectangle is the length multiplied by its breadth.

Since the length is 3(n-1) and the breadth is n+2 and the area is 54, you can form an equation as followed:

3(n-1)*n+2=54

3n(n-1)+2=54

Expand:

(3n*n)-(3n*1)+2=54

3n^2-3n+2=54

Subtract both sides by 54:

3n^2-3n+2-54=54-54

3n^2-3n-52=0

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The <em><u>correct answer</u></em> is:

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Answer:

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