·(X/4)^2+[(56-X)/4]^2=196
来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/27 21:47:55
·(X/4)^2+[(56-X)/4]^2=196·(X/4)^2+[(56-X)/4]^2=196·(X/4)^2+[(56-X)/4]^2=196x=56或x=0
·(X/4)^2+[(56-X)/4]^2=196
·(X/4)^2+[(56-X)/4]^2=196
·(X/4)^2+[(56-X)/4]^2=196
x=56 或 x=0
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
(x/x-2-x/x+2)/4x/x-2
1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做
-x^2·(-x)^3+3x^3·(-x)^2-4(-x)(-x)^4
-x^2·(-x)^3+3x^3·(-x)^2-4(-x)(-x)^4
先化简再求值：2x²-4x/x+2·x²+2x/x²-4x+4+4x/2-x,其中x=1/2.
X(X-4)^2
|-x+2|+|4+x|
x^4-x^2
(x^2-4)x
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
通分x+4/x*x+4x与x-5/x(x-5)-2(x-5)
(x+2)(x-1)+(x+3)(x+1)=x·x-1 求x (5x-4)(2x+5)(3x-6)(2x-4)=(2x-4)(2x+5)·0.5 求x
(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)
计算①x²-4／x²-4x+3÷x²+3x+2／x²-x②2x+6／4-4x+x²÷(x+3)·x²+x-6／3-x
x(x+2)(x-2)-4x^2+8x
4x²-1/3x²-x·9x³-x/2x^4-x³计算 急
x^5-x^4+x^3-x^2+x-1