Respuesta :

jhfc32

Answer:−21x−8

Step-by-step explanation: All sides have the same measure in a square, therefore all sides are 3x-8. Area is equal to 3x-8 times 3x-8 which is −21x−8

kinsleeyu

Answer:

9x^2 - 48x + 64

Step-by-step explanation:

Step 1:  FOIL

  (3x - 8)(3x - 8)

  3x * 3x = 9x^2     First

  3x * - 8 = -24x     Outside

  - 8 * 3x = -24x     Inside

  - 8 * - 8 = 64        Last

Step 2: Combine

  9x^2 - 24x - 24x +64

Step 3: Simplify

  9x^2 - 48x + 64    (Answer)