22-4x

x-4x=102 x-0.8x=22 x-4x=102x-0.8x=22 (4x+2)/x+(4x-22)/(x-5)=(x-6)/(x-4)+(7x+9)/(x+1) 24道符号^表示平方1,x^+21x+202,x^-8x-203,x^+8x-204,x^-8x-335,x^-4x-326,x^-14x+337,x^+49x+488,x^-14x+489,x^-2x-4810,x^+22x-4811,x^-19x+4812,x^-16x+4813,x^+8x-4814,x^-29x+10015,x^+x-7216,x^+32x-3317,x^-21x-10018,x^+4x+319,x^-6x+520,x^+15x+2621,x^ matlab解决约束非线性规划问题myfun.mfunction f=myfun(x)f=x(1)*x(13)+x(2)*x(14)+x(3)*x(15)+x(25)+1.697*(x(4)*x(16)+...x(5)*x(17)+x(6)*x(18)+x(26))+0.575*(x(7)*x(19)+x(8)*x(20)...+x(9)*x(21)+x(27))+0.723*(x(10)*x(22)+x(11)*x(23)+x(12)*x(24)); matlab解决约束非线性规划问题myfun.mfunction f=myfun(x)f=x(1)*x(13)+x(2)*x(14)+x(3)*x(15)+x(25)+1.697*(x(4)*x(16)+...x(5)*x(17)+x(6)*x(18)+x(26))+0.575*(x(7)*x(19)+x(8)*x(20)...+x(9)*x(21)+x(27))+0.723*(x(10)*x(22)+x(11)*x(23)+x(12)*x(24)); （x^24 x^23 x^22 …… x）÷（x^8+1）×（x^3+x^2-x-1)÷（x-1)÷(x^4+1)求值（x^24+x^23+x^22+……+x+1)÷（x^8+1)×(x^3+x^2-x-1)÷(x-1)÷(x^4+1) (X²+4x+8)²+3x(x²+4x+8)+2x²因式分解 (X²+4x+8）²+3x(x²+4x+8)+2x²（2x²-3x+1)²-22x²+33x-1(x²+x+1)(x²+x+2)-12(6x-1)(2x-1)(3x-1)(x-1)+x²ab(a+b)²-(a+b)²+1x²+xy-6y 3x/6x^2z a+b/a^2-b^2 x^2+2x+1/x^2+x 3x-6/x^2-4x+43x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25约分：3x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25 2x+4X(22-x)=64 怎么解 4x+(6一x)x2=22 x=? 2x+4x（7-x）=22 4x+22=2x+22 x-4/1x=8/3 x-0.8x=22 3/2x+2/1x=42x-4/1x=8/3 x-0.8x=22 3/2x+2/1x=42 22-3X=4+0.6X, 0.6X+4=22-3X 4x+2*(22-x)=70 4x+22=70,x=? 22x＝320＋4x