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> (x+22x2-3x-x2+2x2x2+x-6)÷(12-14x-6).-数学
(x+22x2-3x-x2+2x2x2+x-6)÷(12-14x-6).-数学
题目简介
(x+22x2-3x-x2+2x2x2+x-6)÷(12-14x-6).-数学
题目详情
(
x+2
2
x
2
-3x
-
x
2
+2x
2x
2
+x-6
)÷(
1
2
-
1
4x-6
)
.
题型:解答题
难度:中档
来源:不详
答案
原式=
[
class="stub"x+2
x(2x-3)
-
x(x+2)
(x+2)(2x-3)
]
÷
class="stub"2x-3-1
2(2x-3)
=
x+2-
x
2
x(2x-3)
•
class="stub"2x-3
x-2
=-
(x+1)(x-2)
x(x-2)
=-
class="stub"x+1
x
.
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题目简介
(x+22x2-3x-x2+2x2x2+x-6)÷(12-14x-6).-数学
题目详情
答案
=
=-
=-