x^2-22x+120

x^2-22x+120 证明(x+1)(x+3)(x+5)(x+7)+15=(x^2+8x)^2+22(x^2+8x)+120 35道.符号^代表平方.读起来就是（X的平方）.1,x^-x-202,x^-9x+203,x^-9x-204,x^+9x+205,x^-18x+326,x^+14x-317,x^+18x+328,x^+14x-329,x^+19x+4810,x^+47x-4811,x^+13x-4812,x^+2x-4813,x^+26x+4814,x^-22x-4815,x^+17x+7216,x^+21x-10017,x^-x-7218,x x-x/4-120=x/2 分解因式(x^2+8x)^2+22(x^2+8x)+120 (x^2+x)^2-26(x^2+x)+120 (x+1)(x+2)(x+3)(x+4)-120 因式分解（X+1)(X+2)(X+3)(X+4)-120 因式分解（x+1)(x+2)（x+3)(x+4)-120 数学(X+1)(X+2)(X+3)(X+4)-120 证明(x+1)(X+3)(x+5)(x+7)+15=(X+8x)+22(x+8x)+120 因式分解：(X-1)(X-2)(X-3)(X-4)-120(x-1)(x-2)(x-3)(x-4)-120 (x+1)(X+2)(x+3)(x+4)-120 因式分解(x+1)(X+2)(x+3)(x+4)-120因式分解 （x^2-2x)(x^2-2x+4)+3(x+1)(x+2)(x+3)(x+4)-120 x/x^2+x+1=-1/22x^2/(x^2-x+1)+x-1/x^3-1 (4x+2)/x+(4x-22)/(x-5)=(x-6)/(x-4)+(7x+9)/(x+1) 300字读后感 2篇 俄把格式说一下吧：《xxxx》（写题目）主要内容：x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x(写那篇文章的主要内容）思考分析：x x x (3x*x+3x*x+x*x)*2=120,