X·X=(X+10)·(X-6)
1.4(x+5)(x+6)(x+10)(x+12)-3x·x
3^x=2^x,求x.5^(x-1)·10^3x=8^x求x
ax已知x·x+3x-2=0,求2·x·x·x+6·x·x-4x的值.
x+3/x+1·2x的平方+6x/x的平方+6x+9-x/x+1,其中x=2
(X+X)+(X-X)+(X*X)+(X/X)=100
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
(x+2)(x-1)+(x+3)(x+1)=x·x-1 求x (5x-4)(2x+5)(3x-6)(2x-4)=(2x-
(x+7/x+6)+ (x+9/+x+8)=(x+10/x+9)+(x+6/x+5)
1.x+9/x+8- x+10/x+9=x+6/x+5- x+7/x+6;
⒈ 解方程 (X+7)/(X+6)+(X+9)/(X+8)=(X+10)/(X+9)+(X+6)/(X+5)
x-4/x-6+x-8/x-10=x-5/x-7+x-7/x-9