问题
填空题
方程
|
答案
原方程化为:
-4 (x-1)(x+3)
-8 (x-3)(x+5)
+2 (x+1)(x+3)
-2 (x-3)(x-1)
=6 (x-5)(x+1)
,4 5
将分式拆分,得
-1 x-1
-1 x+3
+1 x-3
-1 x+5
+1 x+1
+1 x+3
-1 x-3
-1 x-1
+1 x-5
=1 x+1
,4 5
合并,得
-1 x+5
=1 x-5
,4 5
去分母,整理得4x2=50,
解得x=±
,经检验x=±5 2 2
为原方程的根.5 2 2
故本题答案为:±
.5 2 2