6(3x—2)—4(4x—3)=1
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)
1、x*(x+3)*(x+6)*(x+9)=68040 2、x*(x+1)*(x+2)*(x+3)*(x+4)=5544
3/x-1=4/x 6/x+1=x+5/x(x+1)
5x-3(2x+1)=6x-4(5-3x)求x
证明(x的立方+5x的平方+4x-1)—(-x的平方-3x+2x的立方-3)+(8-7x-6x的平方+x的立方)的结果与
3+2分之1x=4x和3x—2(5x—4)=2+(5—6)x怎么做
X-(X/2)+(X/3)-(X/4)+(X/5)-(X/6)=1
9x+6x²-3(x-2/3x²),其中x=-2 1/4(-4x²+2x-8)-(1/2x
先化简,再求值(2x-6)/(4-4x+x^2)÷ (x+3)× (x^2+x-6)/(3-x),其中x=-1/2
(1)6+2(x-3)=X (2)8-2(x-7)=x-(x-4) (3)2x-(1.5x-1)=2(1.5x-1)