(x-5)(x-6)=6
解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3)
(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)
初一数学x*x+2x+5的值为7,请求3x*x+6x+3的值.因为x*x+2x2x+3=3x(x*x+2x)+2x+2x
解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)
解方程x(2x-5)-x(x+2)=x²-6,
5x-3(2x+1)=6x-4(5-3x)求x
3X+2/5-(X-6)=X/3
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
X-(X/2)+(X/3)-(X/4)+(X/5)-(X/6)=1
5(x²+x-3)-4x(6+x)+x(-x+4)=0