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> 计算:(x-2x2+2x-x+1x2+4x+4)÷x+4x.-数学
计算:(x-2x2+2x-x+1x2+4x+4)÷x+4x.-数学
题目简介
计算:(x-2x2+2x-x+1x2+4x+4)÷x+4x.-数学
题目详情
计算:
(
x-2
x
2
+2x
-
x+1
x
2
+4x+4
)÷
x+4
x
.
题型:解答题
难度:中档
来源:内江
答案
原式=(
x
2
-4
x(x+2
)
2
-
x
2
+x
x(x+2
)
2
)•
class="stub"x
x+4
=
-(x+4)
x(x+2
)
2
•
class="stub"x
x+4
=-
class="stub"1
(x+2
)
2
.
上一篇 :
当x分别取值12008,12007,…,13,12,1
下一篇 :
已知代数式ax+bcx2+d,当x=-1,0,1
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题目简介
计算:(x-2x2+2x-x+1x2+4x+4)÷x+4x.-数学
题目详情
答案
=
=-