Question

please solve it .....​

Answer 1

Answer:

(7m -5n )^2- 9

(7m-5n)^2-3^2. a^2-b^2 =(a+b)(a-b)

(7m-5n+3)*(7m-5n+-3)

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Step-by-step explanation:

Answer 2

I think it is useful for u