Add 4/(y^2-3y+2)+5/(y^2-1)

Math
Simplify each term.
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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.
Simplify the denominator.
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Rewrite as .
Since both terms are perfect squares, factor using the difference of squares formula, where and .
To write as a fraction with a common denominator, multiply by .
To write as a fraction with a common denominator, multiply by .
Write each expression with a common denominator of , by multiplying each by an appropriate factor of .
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Multiply and .
Multiply and .
Reorder the factors of .
Combine the numerators over the common denominator.
Simplify the numerator.
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Apply the distributive property.
Multiply by .
Apply the distributive property.
Multiply by .
Add and .
Subtract from .
Factor out of .
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Factor out of .
Factor out of .
Factor out of .
Add 4/(y^2-3y+2)+5/(y^2-1)


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