作业帮计算：（3x/x-1-x/x+1）·x²-1/x；（a/a-2-a/a+2）·a²-4/a.
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 18:48:08
计算：（3x/x-1-x/x+1）·x²-1/x；（a/a-2-a/a+2）·a²-4/a.
计算：（3x/x-1-x/x+1）·x²-1/x；（a/a-2-a/a+2）·a²-4/a.
计算：（3x/x-1-x/x+1）·x²-1/x；（a/a-2-a/a+2）·a²-4/a.
[3x/(x-1) -x/(x+1)]· (x²-1)/x
=3x/(x-1) · (x²-1)/x - x/(x+1)· (x²-1)/x
=3(x+1) - (x-1)
=3x+3-x-1
=2x+2
.
[a/(a-2) -a/(a+2)]· (a²-4)/a
=a/(a-2) · (a²-4)/a - a/(a+2) · (a²-4)/a
=a+2 -(a-2)
=a+2-a+2
=4
计算 x(x+3)-(x-1)(x-2）
计算:x/(1-x)-1/(x-3)
计算:|3-x|+|x-1|(x>5)
计算（x*x+4x+5）/（x+2）-（x*x+6x+10）/（x+3）+1
计算：x/(x-1)-(x+3)/(x^-1)*(x^2+2x+1)/(x+3)
计算:[(x^2 - 4)/(x^2 - x - 6) + (x+2)/(x-3)] / (x+1)/(x-3)
计算：1-2x+x^2/x-x^3*xy+x^2y/x-x^2
计算:（x+1）（x+3）
计算：(3/x)+(x/x²-1)-(4/1-x)
计算(x+1)(x+2)(x+3)(x+4)
计算：（x+1)(x-2)(x-3)(x-6)
如何计算 (x+1)(x+2)(x+3)(x+4)
计算(X-1)(X-2)(X-3)(X-4)
(x-1)(x-2)(x-3)(x-4)-24计算
计算：（1+1/x）·x²-2x+1/x²-1；（x²/x-1-2x/1-x）÷x/x-1.
(x+1/x+3)²÷x²-1/x²-9·(x-2)(x+1)/x-3计算
4x²-1/3x²-x·9x³-x/2x^4-x³计算 急
x^2-1/x^2+4x+4÷（x+1）×x^2+3x+2/x-1计算