Set the denominator in equal to to find where the expression is undefined.

Factor using the AC method.

Consider the form . Find a pair of integers whose product is and whose sum is . In this case, whose product is and whose sum is .

Write the factored form using these integers.

If any individual factor on the left side of the equation is equal to , the entire expression will be equal to .

Set the first factor equal to and solve.

Set the first factor equal to .

Subtract from both sides of the equation.

Set the next factor equal to and solve.

Set the next factor equal to .

Subtract from both sides of the equation.

The final solution is all the values that make true.

Set the denominator in equal to to find where the expression is undefined.

Subtract from both sides of the equation.

The domain is all values of that make the expression defined.

Interval Notation:

Set-Builder Notation:

Find the Domain (x^2-7x-8)/(x^2+9x+14)*(x+2)/(x+1)