Respuesta :

chibunduoyibe

Answer:

the third option is the answer if you simplify

doomdabomb
Answer:

Third option

Step-by-step explanation:

9x^2 - 2y + 3x^2 - 3y

Combine like terms

9x^2 + 3x^2 = 12x^2
•••••••••••••••••••••••••••
12x^2 - 2y - 3y or 12x^2 - 5y

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