हल करना (9m ^ 2 + n ^ 2)/(9m ^ 2 - n ^ 2) - (3m - n)/(3m + n) | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$\frac{9m^{2}+n^{2}}{9m^{2}-n^{2}}-\frac{3m-n}{3m+n}$$