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addition and subtraction when denomiators are the same

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1 Answer

Just add/subtract numerators
 
(y2 -(5y +14))/y+2 = (y2 - 5y -14)/(y+2)
 
factorize numerator
 
y2 - 7y + 2y -14 = y(y-7) + 2(y-7) = (y+2)(y-7)
 
(y+2)(y-7)/(y+2) = y-7
 
:)