Question

Which of the following is equal to the rational expression below when x+112x² – 121x +11A. +11B.X+ 11c. -11XD. X-11

Answer 1

From the question we have

`(x^2-121)/(x+11)`

from difference of two squares, we have

`\begin{gathered} ((x-11)(x+11))/(x+11) \\ x+11\text{ above cancels the one below, we have } \\ x-11 \end{gathered}`

Hence the answer is option D