Question
Simplify each expression.$$\frac{x^{2}-1}{x^{2}-2 x+1}$$
Step 1
The numerator $x^{2}-1$ can be factorized as $(x-1)(x+1)$, and the denominator $x^{2}-2x+1$ can be factorized as $(x-1)^{2}$. So, the expression becomes: $$ \frac{(x-1)(x+1)}{(x-1)^{2}} $$ Show more…
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