Respuesta :

Answer:

C is correct

Step-by-step explanation:

100g^2 : 10g  x 10g = 100g^2

-9: 3 x -3 = -9

Multiply

(10g + 3)  (10g - 3)

100g^2 - 30g + 30g - 9

   100g^2 +   0 - 9