Question

(3a^2-4b^2)(3a^2+4b^2)​

Answer 1

Answer:

this you can do by yourself only

Answer 2

Answer:

9a^2 - 16b^2

Step-by-step explanation:

= 9a^2 + 12a^2b^2 - 12a^2b^2 - 16b^2

= 9a^2 - 16b^2