（1+0.23+0.34)x(0.23+0.34+0.65)-(1+0.23+0.34+0.65)x(0.23+0.34)=多少,老兄看不懂！请仔细一点

(1+0.23+0.34)x(0.23+0.34+0.65)-(1+0.23+0.34+0.65)x(0.23+0.(1+0.23+0.34)x(0.23+0.34+0.65)-(1+0.23+0.34+0.65)x(0.23+0. (1+0.23+0.34)x(0.23+0.34+0.78)-(1+0.23+0.34+0.78)x(0.23+0.34) 简便运算 (1+0.12+0.23)x(0.12+0.23+0.34)-(1+0.12+0.23+0.34)x(0.12+0.23) (1+0.12+0.23)X(0.12+0.23+0.34)-(1+0.12+0.23+0.34)X(0.12+0.23)=? 简便运算（1+0.12+0.23）X(0.12+0.23+0.34) - (1+0.12+0.34)X(0.12+0.23) (1+0.12+0.23)x(0.12+0.23+0.34)-(1+0.12+0.23+0.34)x(0.12+0.23)等于几?用简便方法计算! x-0.23x=1.54, （1+0.23+0.34)x(0.23+0.34+0.65)-(1+0.23+0.34+0.65)x(0.23+0.34)=多少,老兄看不懂！请仔细一点 请教一道小学算术题用最简便的方法(1+0.23+0.34)X(0.23+0,34+0.65)－(1+0.23+0.34+0.65)X(0.23+0.34)= （x-1）:0.5=4.6:0.23 x-1/4.6=0.5/0.23 0.7x+1.73=1.5x-0.23 0.7x+1.37=1.5x-0.23 x=? x/x+(1-x)/x-1/x matlab解微分方程组出现错误程序如下：function f=shier(t,x)f(1)=x(3)*x(1)*(1-x(1)/0.23)-0.2*x(1)*x(2);f(2)=0.2*x(1)*x(2)-0.18*x(2)-0.2*x(2);f(3)=0.18*x(2)-0.1*x(3);然后这个就出现错误了：Input argument x is undefined.Error in 1 (2/3-1/2)x=1/3225%x：5=0.23x-3/5x=3/5×2/941.6x+1.5×4=1655-5/6x=1/3 *-----------------------------------------------*| 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