Respuesta :

Answer:

6ab+3a^2b

Step-by-step explanation:

13ab+4a^2b-9ab+2ab-a^2b

13ab-9ab+2ab+4a^2b-a^2b

4ab+2ab+4a^2b-a^2b

6ab+3a^2b

Hope this helps ;) ❤❤❤

Answer:

6ab+3a^2b

Step-by-step explanation:

13ab + 4a^2b - 9ab + 2ab - a^2b

13ab - 9ab + 2ab + 4a^2b - a^2b

4ab + 2ab + 4a^2b - a^2b

6ab + 3a^2b

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