simplify the following x^2-2x+1/(3x-3). x-values for which the expression is undefined.

simplify x^2-2x=1/(3x-3) and find the x-values for which the expression is undefined.
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1 Answer

(x^2-2x-1) / (3x-3)

=(x-1)(x-1) / [3*(x-1)]

=(x-1)/3
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