2x-4/x^2/x^2+3x除以x-2/x^2+6x+9 (a-5)乘以25-a^2/a^2-10a+25 a^2-4a+4/9a^2+6a+1除以6-3a/3a+1 请计算

来源：学生作业帮助网 编辑：六六作业网 时间：2024/11/24 10:34:51
2x-4/x^2/x^2+3x除以x-2/x^2+6x+9(a-5)乘以25-a^2/a^2-10a+25a^2-4a+4/9a^2+6a+1除以6-3a/3a+1请计算2x-4/x^2/x^2+3x

2x-4/x^2/x^2+3x除以x-2/x^2+6x+9 (a-5)乘以25-a^2/a^2-10a+25 a^2-4a+4/9a^2+6a+1除以6-3a/3a+1 请计算
2x-4/x^2/x^2+3x除以x-2/x^2+6x+9 (a-5)乘以25-a^2/a^2-10a+25 a^2-4a+4/9a^2+6a+1除以6-3a/3a+1 请计算

2x-4/x^2/x^2+3x除以x-2/x^2+6x+9 (a-5)乘以25-a^2/a^2-10a+25 a^2-4a+4/9a^2+6a+1除以6-3a/3a+1 请计算
(1)2x-4/x^2/x^2+3x除以x-2/x^2+6x+9
=[2(x-2)(x+3)²]/[x(x+3)(x-2)]
=2(x+3)/x
=2+6/x
(2)(a-5)乘以25-a^2/a^2-10a+25
=[-(a-5)(a-5)(a+5)]/[(a-5)²]
=-(a+5)
(3)a^2-4a+4/9a^2+6a+1除以6-3a/3a+1
=[(a-2)²(3a+1)]/[-3(3a+1)²(a-2)]
=[(a-2)]/[-3(3a+1)]
=(2-a)/[3(3a+1)]

x除以2 大于 x除以3 求值：(x/x^2-1)除以(x^2+4x+3)/(x^2+2x+1) [x(-4x+3)+(x+2)(x-2)x]除以(-x) x+X除以2+X除以3等于55 (x+3)除以2=x-(x-1)除以6 x+3除以2=x-(x-1)除以6 解一个式子x(x+4+x)除以2+9x=x(x+x+9)除以2+4x *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || 6除以x+1=x+5除以3-2x=4搞错了，应该 是6除以x+1=x+5除以x（x+1) (x/(x^2+x))除以((x^2+x-2)/x^2-1)+(x+1)/(x-1) 计算：2x-6/4-4x+x^2除以（x+3）乘以x^2+x-6/x+3 计算:(2x-6)/(4-4x+x^2)除以(x+3)乘以(x^2+x-6)/(3-x) 4-4x+x^2分之2x-6除以（x+3)乘以3-x分之x^2+x-6 (x^2-x-6分之x^2-4+x-3分之x+2)除以x-3分之x+1 （3x^4-2x^3)除以(-x)-(x-x^2)乘以3x其中x=-二分之一 （3x^4-2x^3)除以(-x)-(x-x^2)乘以3x其中x=-二分之一 (5x-2除以x-1)+1=4x+5除以3x-3无 计算:[(4x^2-x^3-2x)除以2x]-(x-1)^2