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> 解方程:(1)x-3x-2+1=32-x;(2)4x+1-1x-1=4x2-1.-数学
解方程:(1)x-3x-2+1=32-x;(2)4x+1-1x-1=4x2-1.-数学
题目简介
解方程:(1)x-3x-2+1=32-x;(2)4x+1-1x-1=4x2-1.-数学
题目详情
解方程:
(1)
x-3
x-2
+1=
3
2-x
;
(2)
4
x+1
-
1
x-1
=
4
x
2
-1
.
题型:解答题
难度:中档
来源:不详
答案
(1)方程的两边同乘(x-2),得:x-3+x-2=-3,
即2x=2,
解得:x=1,
检验:当x=1时,x-2=-1≠0,即x=1是原分式方程的解;
则原分式方程的解为:x=1;
(2)方程的两边同乘(x+1)(x-1),得:4(x-1)-(x+1)=4,
即3x=9,
解得:x=3,
检验:当x=3时,x2-1=8≠0,即x=3是原方程的解,
则原分式方程的解为:x=3.
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方程=1的解是.-九年级数学
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题目简介
解方程:(1)x-3x-2+1=32-x;(2)4x+1-1x-1=4x2-1.-数学
题目详情
(1)
(2)
答案
即2x=2,
解得:x=1,
检验:当x=1时,x-2=-1≠0,即x=1是原分式方程的解;
则原分式方程的解为:x=1;
(2)方程的两边同乘(x+1)(x-1),得:4(x-1)-(x+1)=4,
即3x=9,
解得:x=3,
检验:当x=3时,x2-1=8≠0,即x=3是原方程的解,
则原分式方程的解为:x=3.