(x-3/x+3+6x/x²-9)÷1/x²-9化简就行
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/17 17:29:35
x)Ө5֯66ЯP+.-0ֵ|vCiϴnbaMR>q*Qِke4HP&HX^&XB5XDX?,K ĢjŮ UDȬB]PF 1@6`Q 1(Z#O7AԌB`ӈ%IYD,Xo=fXxٿO',g>$1)1q`49 "
(x-3/x+3+6x/x²-9)÷1/x²-9化简就行
(x-3/x+3+6x/x²-9)÷1/x²-9
化简就行
(x-3/x+3+6x/x²-9)÷1/x²-9化简就行
[(x-3)/(x+3)+6x/(x²-9)]÷1/(x²-9 )
= {(x-3)²/[(x+3)(x-3)]+6x/(x²-9)]÷1/(x²-9 )
={(x-3)²+6x]/(x²-9)}÷1/(x²-9 )
=(x-3)²+6x
=x²-6x+9+6x
=x²+9
(x-3/x+3+6x/x²-9)÷1/x²-9
=[(X-3)²/(X+3)(X-3)+6x/(x²-9)]*(x²-9)
=[(X-3)²/(x²-9)+6x/(x²-9)]*(x²-9)
=(X-3)²+6X
=X²-9
原式是[(x-3)/(x+3)+6x/(x²-9)]÷1/(x²-9)吧?
原式=[(x-3)²+6x]/(x²-9)÷1/(x²-9)
=x²-6x+9+6x
=x²+9
x²-9/x²+2x-3乘3x²-x-2/x²-5x+6,
分式加减法:化简:x²+9x/x²+3x+x²-9/x²+6x+9
1.x²-2x-3 2.x²-5x-6 3.x²-9x-10 4.x²-9x-10 5.x²-2x-8 6.x²+2x-8 7.x²-x-12 8.x²+x-12 9.x²+6x-16 10.x²-14x-32 11.x²+7x-18
化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)注意了!是三个分式!(x²+3x+9)/(x²-27)+(6x)/(9x-x²)-(x-1)/(6+2x)
(x²+5x+6)(x²+7x+6)-3x²
xy²/(x²y-y) × x²/(x²+x)=(x²-3x)/(x²-5x) × 2x-10/(x²-6x+9)=化简求植x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1
x²+3x分之x平方+9x+x²+6x+9分之x²-9
两个初升高衔接教材的数学题.①(x²+x+1)(x²+x+2)-12=(x²+x+1)(x²+x+1+1)-12=(x²+x+1)²+(x²+x+1)-12=(x²+x-3)(x²+x+5)[十字相乘法]②(x²+x)²-8(x²+x)+12=(x²+x-2)(x²+x-6)[
计算:x²-6x+9/x²-x-6÷x²-9/x²-3x-10 乘以x+3/2x-10
已知2x²+2x-3=0 求代数式x(x²-x-1)+2(x²+1)-1/3x(3x²+6x)
5(x²-x)=3(x²+x)
因式分解:(x²-2x)²-3x²+6x
(x²-3x)²-2x²+6x-8
(x²-2x)²-3x²+6x因式分解
(x-3/x+3+6x/x²-9)÷1/x²-9化简就行
3x²-x=0,求6x³+7x²-5x+2006
3x²-x=1 6x³+7x²-5x+2006
混合运算6x+2x²-3x+x²+1其中x=-5