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The rectangle below has an area of x^2-16 square meters and a width of x+4 meters. What expression represents the length of the rectangle?

The rectangle below has an area of x^2-16 square meters and a width of x+4 meters. What expression represents the length of the rectangle?
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2 votes
The rectangle below has an area of x^2-16 square meters and a width of x+4 meters. What expression represents the length of the rectangle?

asked
User Zdan
by
7.9k points

2 Answers

4 votes

Answer:

(x-4)

Explanation:

answered
User Pnschofield
by
8.6k points
4 votes
area=LW
x^2-16=L(x+4)
remember difference of 2 perfect squares to factor x^2-16
(x-4)(x+4)=L(x+4)
divide both sides by (x+4)
x-4=L

legnth=x-4
answered
User YYashwanth
by
7.8k points
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