Rational Expressions

Reduce the following rational expression to its lowest form

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

Reduce the following rational expression to its lowest form

`(x^2 - 11x + 18)/(x^2 - 4x + 4)`

Reduce the following rational expression to its lowest form

`(9x^2 + 81x)/(x^3 + 8x^2 - 9x)`

Reduce the following rational expression to its lowest form

`("p"^2 - 3"p" - 40)/(2"p"^3 - 24"p"^2 + 64"p")`

Find the excluded values, of the following expression

`y/(y^2 - 25)`

Find the excluded values, of the following expression

`"t"/("t"^2 - 5"t" + 6)`

Find the excluded values, of the following expression

`(x^2 + 6x + 8)/(x^2 + x - 2)`

Find the excluded values, of the following expression

`(x^3 - 27)/(x^3 + x^2 - 6x)`