回答: #6(x + 8)(x-9)# 説明: # "両方の分母を因数分解する"# #2x + 16 = 2(x + 8)larrcolor(blue)「2の共通因子」# #3x-27)= 3(x- 9)larrcolor(blue) "3の公約数"# # "the"色(青) "最小公倍数" "(LCM)"# # "2と3" = 2xx3 = 6# # "of"(x + 8) "と"(x-9)=(x + 8)(x-9)# #rArrLCD = 6(x + 8)(x-9)#