(6x-12)(8x十5)-(8x一7)(6x一12)=o 解方程

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(6x-12)(8x十5)-(8x一7)(6x一12)=o解方程(6x-12)(8x十5)-(8x一7)(6x一12)=o解方程(6x-12)(8x十5)-(8x一7)(6x一12)=o解方程6(x-

(6x-12)(8x十5)-(8x一7)(6x一12)=o 解方程
(6x-12)(8x十5)-(8x一7)(6x一12)=o 解方程

(6x-12)(8x十5)-(8x一7)(6x一12)=o 解方程
6(x-2)(8x+5-8x+7)=0

原式=(6x-12)(8x+5)-(6x-12)(8x-7)
=(6x-12)(8x+5-((8x-7))
=(6x-12)(8x+5-8x+7)
=(6x-12)*12
=12x-144
ps:*是乘号