2 / (x ^ 2-9) + 3 / (x ^ 2-4x + 3) nedir?

2 / (x ^ 2-9) + 3 / (x ^ 2-4x + 3) nedir?
Anonim

Cevap:

# 2 / (x ^ 2-9) + 3 / (x ^ 2-4x + 3) = (5x + 7) / ((x-3), (x + 3), (x-1)) #

Açıklama:

# 2 / (x ^ 2-9) + 3 / (x ^ 2-4x + 3) #

= # 2 / ((x-3), (x + 3)) + 3 / ((x-3), (x-1)) #

= # (2, (x-1) +3 (x + 3)) / ((x-3), (x + 3), (x-1)) #

= # (2x-2 + 3x + 9) / ((x-3), (x + 3), (x-1)) #

= # (5x + 7) / ((x-3), (x + 3), (x-1)) #