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The rectangle below has an area of x2 - 6x – 7 square
meters and a width of x – 7 meters.
What expression represents the length of the rectangle?
Length
x - 7
x² - 6x - 7

Respuesta :

Answer:

The length is (x+1)

Step-by-step explanation:

  1. We know the area equals length times width. LxW=Area
  2. We know the width equals (x-7). We also know the area equals x² - 6x - 7.
  3. We need to expand the area. When we do, we get (x+1)(x-7).
  4. The width is (x-7), so the length must be (x+1).