(6x+180)=1.5(5x+30)的解,
解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3)
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
(x-5)+(x+5)+2x+(x÷2)=180的解
解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8
解方程x(2x-5)-x(x+2)=x²-6,
求函数Y=(X·X-2X-1)/(X·X-5X-6)的值域?
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
解方程:6x(7-x)=36-2x(3x-5)x是字母x
3x+4x+5x=6x x为指数,我不会打x次方.(解方程)
1.试求出下列方程的解:(1)(x²-x)²-5(x²-x)+6=0 (2)(x+1)/x
3/x-1=4/x 6/x+1=x+5/x(x+1)
先观察下列各式,(x+5)(x+6)=x²+11x+30 (x-5)(x-6)=x²-11x+30