Question

81(a-b)²-36(a+b)² ffactories answer is 9(5a-b)(a-5b)​

Answer 1

Answer:

81(a-b)^2-36(a+b)^2

=9((3a-3b)^2-(2a-2b)^2)

=9(3a-3b+2a+2b)(3a-3b-2a+2b)

=9(5a-b)(a-5b)

Answer 2

Answer:

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