0.5(8-x)(6-x)=24

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/05 23:15:01

0.5(8-x)(6-x)=24

(8-x)(6-x)=48
48-14x+x²=48
x(x-14)=0
x=0,x=14

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 48-8x-x(6-x)=24 0.5(8-x)(6-x)=24 解下列方程!就三道!解下列方程.1、x/x-2 - 1-x²/x²-5x = 2x/x-3(x/x-2 - 1-x²不是一起的!)2、5x/x²+x-6 - 5-2x/x²-x-12=7x-10/x²-6x+8(5x/x²+x-6 - 5-2x不是一起的!)3、x-4/x-5 + x-8/x-9=x-7/x- 解方程:X/4+8=2008 40%X-1.6=12 24:2/3=X:0.5X/4+8=200840%X-1.6=1224:2/3=X:0.54X-12=6X除3+0.6=3(x-1.5)乘4=263x+4+x=80x/3-x/6=2.460+3x-x=801.5x+36=x+45 1.(1/X-1 )-2=X^-3X/X^-12.(X/X+1)^+5(X/X+1)+6=03.(8(X^+2X)/X^-1)+ 3(X^-1)/X^+2x 1/(x+2)(x+4)+1/(x+a)(x+6)+1/(x+6)(x+8)=2/(3x+24) 解方程 x+17=3(x+13),2x-11.2=0.6x,2.5x-2.17=21.9-5.8x,8(x-1.5)=x+0.6,2(0.5-x)+6=3x-2.53,用方程解 6X-(360X-0.5X)=2×(360X-0.5X) 6X-(360X-0.5X)=2×(360X-0.5X)怎么算? 解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8 6x(x-2)-(x-2)(3x-1)=3x²-8 解方程:(8x+24)/(x^2+6x+9)+x^2/(x^2-9)=(x^2-9)/(x^2-6x+9) 1/(x-7)+1/(x-4)=1/(x-5)+1/(x-6)a为何值时,方程x/(x-3)=2+a/(x-3)会产生增根?(1) (8x+24)/(x^2+6x+9)+x^2/(x^2-9)=(x^2-9)/(x^2-6x+9)(2) 1/(x-7)+1/(x-4)=1/(x-5)+1/(x-6)(3 麻烦解4道分式方程(20分)(x/2x-5)+(5/5-2x)=1(x+1/x*x-2x)-(1/x)=3/x-2(1-x/5-x)-(5-x/1-x)=8/x*x-6x+5(x+1/x-1)-(4/x*x-1)=1去掉括号,不管前面正负,都不变号~ 解方程:1、1.4×(2500%-x)-60%x=15 2、9(300-x)-1.8x=2600 3、5x+10(54-x)=390 4、18x-3(18-x)=725、6(100-x)+7(200-x)=1350 6、2.4×(500-x)-1.6x=400 7、15%+6分之3x+15分之7=24分之13 8、0.5×(5000-0.4x)+4分之3x f(x)=(x^3-2)/[2(x-1)^2]求导f'(x)=[6x²(x-1)²-4(x³-2)(x-1)]/[2(x-1)²]²>0即 6x²(x-1)²-4(x³-2)(x-1)>0 (x-1)[6x²(x-1)-4(x³-2)]>0 (x-1)[6x³-6x²-4x³+8]>0 (x-1)(x³-3x²+4)>0 (x- 6x+4x(8-x)=38 (x+x)+(x-x)+(x/x)=11.2