36(x-2)²-49(x+1)²=0
[6(x-2)]²-[7(x+1)]²=0
(6x-12)²-(7x+7)²=0
(6x-12+7x+7)(6x-12-7x-7)=0
(13x-5)(-x-19)=0
x=5/13或x=-19
希望对您有所帮助
36(x-2)²-49(x+1)²=0
[6(x-2)]²-[7(x+1)]²=0
(6x-12)²-(7x+7)²=0
(6x-12+7x+7)(6x-12-7x-7)=0
(13x-5)(-x-19)=0
x=5/13或x=-19
希望对您有所帮助