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2014-06-12T22:34:17-03:00

 

= 7x+49/(x+2)² + (3x-1)/(x+2) ==>>MMC = (x+2)²

= [7x+49 + (3x-1)(x+2)]/(x+2)² =

= [7x + 49 + 3x² + 6x -x - 2]/(x+2)² =

= (3x² + 12x + 47)/(x+2)²


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