Question

Find the least common denominator for thesetwo rational expressions.x3-3x2 – 2x + 1 x2 + 6x - 7-Enter the correct answer.000DONEClear all02 ?

Answer 1

Given

`\begin{gathered} (x^3)/(x^2-2x+1)=(x^3)/((x-1)^2) \\ \\ (-3)/(x^2+6x-7)=-(3)/((x-1)(x+7)) \\ \end{gathered}`

Hence the LCM is

`(x-1)^2(x+7)`