XtremeNinjaX
Answered

To find the area, A of a rectangle you multiply the rectangle’s length, l by its width, w. What is the width of a rectangle with the following dimensions:

A= X^2 +7x +10
l = (x +2)

Answer :

jcherry99

Answer:

w = x + 5

Step-by-step explanation:

The formula for Area is A = l * w

L = x + 2

w = ???

Area = x^2 + 7x + 10

The area can be factored

x^2 + 7x + 10 = (x + 2)(x + 5)

So now you can write the formula as

(x + 2) * w = (x + 2)(x + 5)    Divide both sides by x + 2

w =(  (x + 2)(x + 5)  )/(x + 2)

The two (x + 2)'s cancel

w  = x + 5

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