2(x+1.5)=6
(1)6+2(x-3)=X (2)8-2(x-7)=x-(x-4) (3)2x-(1.5x-1)=2(1.5x-1)
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
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
1、x*(x+3)*(x+6)*(x+9)=68040 2、x*(x+1)*(x+2)*(x+3)*(x+4)=5544
x+1/x=6,则(x^4+x^2+1)/x^2=
解下列方程 4(6x+3)=60 2x+1.5x=17.5 2x+23*4 8x-3x=105 (
解方程x(2x-5)-x(x+2)=x²-6,
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)
6X-(360X-0.5X)=2×(360X-0.5X)
5x-3(2x+1)=6x-4(5-3x)求x