Question

please answer this question ​

Answer 1

Step-by-step explanation:

(a^2-2b)(3a^2+b^2)

a^2(3a^2+b^2)-2b(3a^2+b^2)

3a^4+a^2b^2-6a^2b-2b^4

3a^4-5a^2b^2-2b^4

^ represents square

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