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?

Question

Mathematics

Karissa Woodward

14 January, 08:47

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?

+3

Answers (1)

Know the Answer?

Trent Shah · Answer 1

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