9-x的平方分之x的平方-6x 9
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/18 09:51:50
原式=(x-3)^2)*[(x+3)/(x-3)(x-6)]=(x+3)(x-3)/(x-6)=(x^2-9)/(x-6)
x的平方-9分之x的平方-4x+4除以x的平方+3x分之x的平方-4除以x的平方=(x-2)²/(x+3)(x-3)÷(x+2)(x-2)/x(x+3)÷x²=(x-2)(x+2)
题意是这样的吧:求(x²+9x)/(x²+3x)+(x²-9)/(x²+6x+9)原式=(x²+9x)/(x²+3x)+(x+3)(x-3)
是求X的值吗?不晓得对不对哈,姑且一看吧 由已知可得:
X的平方+3X分之X的平方+9X+X的平方+6X+9分之X的平方-9=x(x+3)分之(x²+9x)+(x+3)²分之(x+3)(x-3)==x(x+3)分之(x²+9x
(X的平方+9x)/(x的平方+3x)+(x的平方-9)/(x的平方+6x+9)=x(x+9)/x(x+3)+(x+3)(x-3)/(x+3)²=(x+9)/(x+3)+(x-3)/(x+3
=(x+2)(x-1)/(x-3)×(x-3)²/(x+2)=(x-1)(x-3)=x²-4x+3
x的平方-9分之x的平方+2x-3乘x的平方-1分之x的平方-5x+6=(x-3)分之(x-1)乘[(x-1)(x+1)]分之(x-2)(x-3)=(x+1)分之(x-2)
=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的平方-3x)分之(x+3)-(x的平方-6x+9)分之(x-1)]÷x分之(x-9)=[(x+3)/(x^2-3x)-(x-1)/(x^2-6x+9)])]÷[(x-9)/x]=[(x+3)/
1:2分之3X的平方-{-2分之1X平方}+{-2X平方}=3x²/2+x²/2-2x²=4x²/2-2x²=2x²-2x²=02
原式=(x-3)/(x²+x)*1/(x-3)²约去x-3=1/[(x-3)(x²+x)]=1/(x³-2x²-3x)
原式=(x+6)(x-3)/[x(x+6)]*1/(x-3)²=1/[x(x-3)]=1/(x²-3x)
(x²+6x+9)分之(x-3)+(9-x²)分之x=(x²+6x+9)分之(x-3)-(x²-9)分之x=(x+3)²分之(x-3)-[(x+3)(
原式=x(x-9)/x(x+3)-(x+3)(x-3)/(x-3)²=(x-9)/(x+3)-(x+3)/(x-3)=(x²-12x+27-x²-6x-9)/(x+3)(
(x²-6x+9)/(x+1)÷(x²-9)/(x²+x)=[(x-3)²/(x+1)]×[x(x+1)/(x+3)(x-3)]=x(x-3)/(x+3)x的平
3x的平方+9x的平方没打错?再问:能不能重新拼一遍再答:3x的平方+9x的平方有没有打错吗再问:没有,题目是这个样子的再答:=[(X+3)(X-3)]/(X+3)²×12X²/[
原式=1/(x+1)*[(x-3)/(x+3)^2+2/(x+3)]-x/(x+3)(x-3)=1/(x+1)[3(x+1)/(x+3)^2]-x/(x+3)(x-3)=3/(x+3)^2-x/(x+
=(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)