(1)-2/3(x+1)>-2 (2)[(2x+1)/-2]-[(x-3)/3]>2 (3)(2x-3)/-3>(-3x-2)/2 (1)[(2x-1)/3]-[(5x+10]小于等于1(2)[(3x-2)/3]-[(9-2x)/3小于等于【(5x+1)/2】(3)1/2(x-1)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/25 07:03:49
(1)-2/3(x+1)>-2(2)[(2x+1)/-2]-[(x-3)/3]>2(3)(2x-3)/-3>(-3x-2)/2(1)[(2x-1)/3]-[(5x+10]小于等于1(2)[(3x-2)

(1)-2/3(x+1)>-2 (2)[(2x+1)/-2]-[(x-3)/3]>2 (3)(2x-3)/-3>(-3x-2)/2 (1)[(2x-1)/3]-[(5x+10]小于等于1(2)[(3x-2)/3]-[(9-2x)/3小于等于【(5x+1)/2】(3)1/2(x-1)
(1)-2/3(x+1)>-2 (2)[(2x+1)/-2]-[(x-3)/3]>2 (3)(2x-3)/-3>(-3x-2)/2
(1)[(2x-1)/3]-[(5x+10]小于等于1
(2)[(3x-2)/3]-[(9-2x)/3小于等于【(5x+1)/2】
(3)1/2(x-1)

(1)-2/3(x+1)>-2 (2)[(2x+1)/-2]-[(x-3)/3]>2 (3)(2x-3)/-3>(-3x-2)/2 (1)[(2x-1)/3]-[(5x+10]小于等于1(2)[(3x-2)/3]-[(9-2x)/3小于等于【(5x+1)/2】(3)1/2(x-1)
(1)[(2x-1)/3]-[(5x+10]≤1
2x-1-3(5x+10)≤3
2x-1-15x-30≤3
-13x≤34
x≥-34/13
(2)[(3x-2)/3]-[(9-2x)/3≤【(5x+1)/2】
(5x-11)/3≤(5x+1)/2
2(5x-11)≤3(5x+1)
10x-22≤15x+3
-5x≤25
x≥-5
(3)1/2(x-1)

(4)1/2[x-1/2(x+1)]≤2/5(x-1)
1/2[1/2x-1/2]≤2/5x-2/5
1/4x-1/4≤2/5x-2/5
5x-5≤8x-8
-3x≤-3
x≥1
(5)3(x+1)/8+2<3-(x-1)/4
...

全部展开

(4)1/2[x-1/2(x+1)]≤2/5(x-1)
1/2[1/2x-1/2]≤2/5x-2/5
1/4x-1/4≤2/5x-2/5
5x-5≤8x-8
-3x≤-3
x≥1
(5)3(x+1)/8+2<3-(x-1)/4
3(x+1)+16<24-2(x-1)
3x+3+16<24-2x+2
5x<7
x<1.4
(6)(0.4x+0.9)/0.5-(0.03+0.02x)/0.03>(x-5)/2
(4x+9)/5-(3+2x)/3>(x-5)/2
6(4x+9)-10(3+2x)>15(x-5)
24x+54-30-20x>15x-75
-11x>-99
x<9

收起

请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360 解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1 (x-1)^3(x+1)(x-2)/(x+4) x(x+1)(x+2)(x+3)+1 (换元法) (x+2)(x-2)+16 (x-1)(x-2)+3x(x+3)-4(x+2)(x-3)(x+2)(x-2)+16 (x-1)(x-2)+3x(x+3)-4(x+2)(x-3) 计算 x(x+3)-(x-1)(x-2) 化简:x(2x+1)-x(x-3) (x+1)(x+2)(x+3)(x+4)+1(x+1)(x-2)(x+3)(x-4)+25 计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1 (x-1/x+1 - x+1/x-3 )除 2/x²+2x+1 x(x平方-1)+2X平方(X+1)-3X(2X-5)帮个忙 【(Xˇ2-X)/x】 ·【 x/(X+1)】+【(3x+1)】 *-----------------------------------------------*| 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 || 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x 七年级下册政治复习提纲(山东人民出版社)第五单元是 青春的脚步 青春的气息别弄错了啊!格式:X X X X X X X X X 1、X X X X X X X X X X.2、X X X X X X X X X.3、X X X X X X X X X X X. (X-3分之x-1-x分之x-4)除以x的平方+3x分之(x+3)(x-2),其中(x-1)(x-2)=0 (1)(2x/x-1)-(x-1/x)=1 (2)(x^2-4x/x^2-1)+1=2x/x+1 (3)(x+4/x^2+2x)-(1/x+2)=(2/x)+1 (1)(2x/x-1)-(x-1/x)=1 (2)(x^2-4x/x^2-1)+1=2x/x+1 (3)(x+4/x^2+2x)-(1/x+2)=(2/x)+1