Respuesta :

factor the 2 denominators:-


a^2 - 6a + 9 = (a - 3)(a - 3)


a^2 - 8a + 15 = (a - 3)(a - 5)


((a - 3) is common to both sets of factors so the LCD is:-


(a - 3)(a - 3)(a - 5) or this can be written as (a -3)^2(a - 5)




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