4-x
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4-x4-x4-x4-x4-13x>3x>1x-1/2<4x-5/3两边乘63x-37x>7/5-(x-1)/2<3两边乘(-2),不等号改向x-1>-6x>-54-x移向-3xx>1同理x-1/2<
4-x
4-x
4-x
4-x4-1
3x>3
x>1
x-1/2<4x-5/3
两边乘6
3x-37
x>7/5
-(x-1)/2<3
两边乘(-2),不等号改向
x-1>-6
x>-5
4-x<2x+1
移向-3x<-3
x>1
同理x-1/2<4x-5/3
3x>7/6
x>7/18
同理 -(x-1)/2<3
x>-5
4-x<2x+1的解集X>1
x-1/2<4x-5/3的解集X>7/18
-(x-1)/2<3的解集X>-5
1,移项:3x>3
系数化为一:x>1;
2,移项:3x>7/6
系数化为一:x>7/18
3,两边同乘以-2:x-1>-6
x>-5
2x+x>4-1
3x>3
x>1
x-1/2<4x-5/3
两边乘6
3x-3<8x-10
5x>7
x>7/5
-(x-1)/2<3
两边乘(-2),不等号改向
x-1>-6
x>-5
*-----------------------------------------------*| 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
x*x*x-4x*x+12x分解因式
因式分解(X-X)(x-X-4)+4
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^4表示( ) A.4x B.x+x+x+x c.x*x*x*x D.x+4
(4+x)/(4-x)
x 加4x
因式分解x+x^4
(1+x)(4-x)
(x-a)(x-4)
4x立方-x
-4+x-x²
如{x|x>4}
X(X-4)^2
|-x+2|+|4+x|
-4+x-x²
|x-1|+|x-4|