Add (x+4)/(x^2-x-12)+(2x)/(x-4)

Math
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.
To write as a fraction with a common denominator, multiply by .
Simplify terms.
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Multiply and .
Combine the numerators over the common denominator.
Simplify the numerator.
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Apply the distributive property.
Multiply by by adding the exponents.
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Move .
Multiply by .
Multiply by .
Add and .
Reorder terms.
Add (x+4)/(x^2-x-12)+(2x)/(x-4)

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