1.5×5-2(x-5)≥15.5
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1.5×5-2(x-5)≥15.51.5×5-2(x-5)≥15.51.5×5-2(x-5)≥15.5
1.5×5-2(x-5)≥15.5
1.5×5-2(x-5)≥15.5
1.5×5-2(x-5)≥15.5
0.3+0.3x=0.39 x= 2x-1.5x=7.6x x= 0.36x÷0.3=1.2 x=6(x+1.2)=18.6 x= 7x+2x = 8.1 x= (x-5)÷3=1.7 x=5(x+1.1)=15.5 x= 9x+25=70 x= 7x-4x=2.1 x=
3≤|8-x| |x+1|>2-x |x+3|7|x+1| x^2-6|x|+9>0 |x-1|+|x+2|≥5 (1)方法
(x-3)(x-2)(x-5)≥0,
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
2X(x+1.5x)=5x 解方程
*-----------------------------------------------*| 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
(x+2)(x^2+5x-10)-(x+2)^2(x-1),其中x=1.5
(x+2)(x^2+5x-10)-(x+2)^2(x-1),其中x=1.5,
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3)
x-3(x-2)≥14 (3x-1)/3>x-5/2
不等式(x+1)(x+3)≥(x-2)(x+5)+10的解集为
(1)1000*1.5^5-1.5x^4-1.5x^3-1.5x^2-1.5x-x>=2000(2)-x^2-43x
(x*x-5x)(x*x-5*x-2)-24分解因式
x(x平方-1)+2X平方(X+1)-3X(2X-5)帮个忙
化简(x+2)(x的平方-6x-9)-(x-5)(x-3)x
1.5×5-2(x-5)≥15.5