4(x²+4x-12)/6(x²+5x-6)
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4(x²+4x-12)/6(x²+5x-6)
4(x²+4x-12)/6(x²+5x-6)
=4(x+6)(x-2)/6(x+6)(x-1)
=2(x-2)/3(x-1)
=4(x+6)(x-2)/6(x+6)(x-1)
=2(x-2)/3(x-1)
4(x²+4x-12)/6(x²+5x-6)
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
5(x²+x-3)-4x(6+x)+x(-x+4)=0
计算[(x²-5x+6)/(x²-4x+3)]+[(x²-4x+3)/(x²-2
已知x-4/x=6,求代数式2x²-20x/x²-14x+4除(1-x-12/2-x)的值
(2x-6)/(x²-4x)/(X+3)*( x²+x-6)/(3-x)等于多少?
解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8
(2x-6)/(x²-4x+4)÷(3-x)/(x²+6x+9)×(2-x)/(x+3)
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
3/x-1=4/x 6/x+1=x+5/x(x+1)