灵鹊做题网(2x-4)的平方分之x,6x-3x的平方分之1,x的平方-4分之2x
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/02 00:30:09
(x²-5x+6)/(2x-4)+(x²-4x+3)/(x-1)=(x-2)(x-3)/2(x-2)+(x-1)(x-3)/(x-1)=(x-3)/2+(x-3)=3(x-3)/2
(4-4x+x²)分之(2x-6)÷(x+3)×(3-x)分之(x²+x-6)=(x-2)²分之[2(x-3)]×(x+3)分之1×[-(x-3)]分之[(x+3)(x-
2/(x-2)+6x/(x²-4)=3/(x+2)乘以(x²-4)得2(x+2)+6x=3(x-2)2x+4+6x=3x-68x-3x=-6-45x=-10x=-2经检验,当x=-
2x²-3/4(4x-6x²)+(x-3x²)=2x²-3x+9/2x²+x-3x²=7/2x²-2x
=[2(x-3)/(x-2)^2]/(x+3)*[(x-2)(x+3)/(x+3)]=2(x-3)/[(x-2)(x+3)]=(2x-6)/(x^2+x-6)
=3x的平方-12x+41/5不是方程的话答案就是这个
=2(x-3)/(x+3)(x-3)+(x+1)²/(x+3)(x-2)×(x-2)/(x+1)=2/(x+3)+(x+1)/(x+3)=(x+3)/(x+3)=1
=(x+2y)(x-2y)/(x+2)²×(x+2)/3x(x+2y)=(x-2y)/3x(x+2)=(x-2y)/(3x²+6x)
原式=3/2(x+2)+6/(x+2)(x-2)+1/(x-2)=(3x-6+12+2x+4)/2(x+2)(x-2)=(5x+10)/2(x+2)(x-2)=5(x+2)/2(x+2)(x-2)=5
(x^2+6)/(2x^2+x)+(4x^2+2x)/(x^2+6)=3令A=(x^2+6)/(2x^2+x)原式=A+2/A=3A^2-3A+2=0A1=1,A2=21=(x^2+6)/(2x^2+
=[(x+2)(x-2)/(x-3)(x+2)+(x+2)/(x-3)]×(x-3)/(x+1)=[(x-2)/(x-3)+(x+2)/(x-3)]×(x-3)/(x+1)=2x/(x-3)×(x-3
2x的平方-5x+x的平方+4x-3x的平方-2=(2x的平方+x的平方-3x的平方)+(-5x+4x)-2=-x-2=-1/2-2=-2又1/26x+2x的平方-3x+x的平方+1=3x+3x的平方
=x/(x+2)(x-2)-(x-2)/(x+2)(x-2)=[x-(x-2)]/(x+2)(x-2)=2/(x²-4)
经过因式分解,结果为-1
=(x+2)/(x-3)×(x-3)²/(x+2)(x-2)=(x-3)/(x-2)
(x的平方-16)分之(6-5x+x的平方)÷(4-x)分之(x-3)×(4-x的平方)分之(x的平方+5x+4)=(x^2-5X+6)/(X^2-16)×(4-X)/(X-3)×(X^2+5X+4)
x的平方-x-2分之x=（x+1)乘以（x-2)分之x=(x+1)乘以（x-2）方分之x（x-2）x的平方-4x+4分之一=（x-2）方分之一=(x+1)乘以（x-2)方分之（x+1)
数学之美团为你解答(x²-2x)/(x²-4)÷[x-2-(2x-4)/(x+2)]=x(x-2)/[(x+2)(x-2)]÷[(x²-4)/(x+2)-(2x-4)/(