(2x-3)(2x-3)-5(2x-3)+6=0大神们帮帮忙希望你们帮我!

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/06 09:59:20
(2x-3)(2x-3)-5(2x-3)+6=0大神们帮帮忙希望你们帮我!
x){èBXJөk`k<]yOvyctGϳ9]|1Q&H,_`gC]=_Ɏ{Ml{f=ٽdӎZ #:EM53s@w k'8 0k&d035266n MAB3ƂuUiB* mu*l"6yv@1

(2x-3)(2x-3)-5(2x-3)+6=0大神们帮帮忙希望你们帮我!
(2x-3)(2x-3)-5(2x-3)+6=0大神们帮帮忙
希望你们帮我!

(2x-3)(2x-3)-5(2x-3)+6=0大神们帮帮忙希望你们帮我!
第一种方法:令y=2x-3 则y*y-5y+6=0 y=2或3 得x=2.5或3 第二种方法:(2x-3)(2x-3)-5(2x-3)+6=0 (2x-3)(2x-3-5)+6=0 (2x-3)(2x-8)+6=0 4x^2-22x+30=0 即x^2-11/2+15/3=0 则(x-3)(x-5/2)=0 则x1=3,x2=5/2

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 *-----------------------------------------------*| 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 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(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 请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360 3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/(x-2)-x/(x+2)÷2x/(x²-4)化简 x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x) x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4 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- (x+3x+5x...+2009x)-(2x+4x+6x+...+2010x) x+5/x+1-3x-3/x+5=8x+28/x^2+4X-5-2(x+5)/(x+1)-(3x-3)/(x+5)=(8x+28)/(x^2+4X-5)-2 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 x/x-3-5x/x^2-x-6计算 x^5-x^4+x^3-x^2+x-1 求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X X