Resolver (a ^ 2 - 2ab + b ^ 2)/(a ^ 2 - 1) * (a - 1)/(a - b) | 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

$$\frac{a^{2}-2ab+b^{2}}{a^{2}-1}\cdot\frac{a-1}{a-b}$$