x^2-14x+49

x^2-14x+49 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^ 2x^2+14x+49=169,求x. 49-2x=3x+14,x=? 14x-1-49x^2因式分解 x+y)^2-14(x+y)+49 3x+5大于-11x-49 ------ --------- x 163x+5大于-11x-49 2x-x-1小等于x 5-x-1小等于x------ --------- -- --- -- -- ---- -x 16 7 2 14 12 3 6那个------是分数线 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^3)^()*x^2=x^14 x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x(x-1)(x-2)...(x-49)等于多少? √(x^2-14x+49)-√(1-x)^2/1-x (1 (1)32x^3-2x (2)-14xy-x^2-49y^2(3)x^3-xy^2 (4)x^3-6x^2+9x (x^2+x)^2-14(x^2+x)+24 x^3+x-30(分解因式);x^12-y^12;x^15+x^14+x^13.x^2+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 x^15+x^14+x^13+x^12……+x^2+x+1 分解因式 1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550必须用解方程 *-----------------------------------------------*| 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 ||