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OpenStudy (anonymous):
simplify (y-8)/(y-9) - (y+1)/(y+9) + (y-27)/(y^2-81) please put the steps, i am not quite sure where to start on this one, thanks!
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jhonyy9 (jhonyy9):
write y2 -81 = (y-9)(y+9) and this will be the denominator common
jhonyy9 (jhonyy9):
hence you need multiply the first term by (y+9) second by (y-9) and after calcule the numerator
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