Ответ:
# 2 / (х ^ 2-9) + 3 / (х ^ 2-4x + 3) = (5x + 7) / ((х-3) (х + 3) (х-1)) #
Объяснение:
# 2 / (х ^ 2-9) + 3 / (х ^ 2-4x + 3) #
= # 2 / ((х-3) (х + 3)) + 3 / ((х-3) (х-1)) #
= # (2 (х-1) +3 (х + 3)) / ((х-3) (х + 3) (х-1)) #
= # (2x-2 + 3х + 9) / ((х-3) (х + 3) (х-1)) #
= # (5x + 7) / ((х-3) (х + 3) (х-1)) #
