# Simplify (b^2-2b-8)/(b^2+b-2)-6/(b-1)

Simplify each term.
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.
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.
Cancel the common factor of .
Cancel the common factor.
Rewrite the expression.
Combine into one fraction.
Combine the numerators over the common denominator.
Subtract from .
Simplify (b^2-2b-8)/(b^2+b-2)-6/(b-1)