Simplify (5r+15)/(r^2-5r-24)-6/(r-8)

Math
Simplify each term.
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Factor out of .
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Factor out of .
Factor out of .
Factor out of .
Factor using the AC method.
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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 .
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Cancel the common factor.
Rewrite the expression.
Combine the numerators over the common denominator.
Subtract from .
Move the negative in front of the fraction.
Simplify (5r+15)/(r^2-5r-24)-6/(r-8)
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