Respuesta :

sashaebrown6

Answer:

B 81x^2 + 4y^2 that's the answer I have

mhanifa

Answer:

  • C. 81x² - 4y²

Step-by-step explanation:

The shaded region is the difference of the area of square with side 9x and the area of square with side 2y:

  • A = (9x)² - (2y)² = 81x² - 4y²

Correct choice is C