x^3+12x+47x+60

x^3+12x+47x+60 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 x^3+12x^2+47x+60 (4/x-5)+(x-3)/(12-x)=(x-45)/(x^2-17x+60) 紧急~~~分解因式：①(x^4)-(3x^3)-(5x^2)+3x+4=? ②(x^3)-(6x^2)+9x-4=? ③(x^3)+(12x^2)+47x+60=?求大神要有过程 3x·x-5x-122x·x·x-x·x-4x+3x·x·x-6x-5x·x+6x+64x·x+12x+7 如果3x*x-x=1那么9x*x*x*x+12x*x*x-3x*x-7x+2001等于多少 通分:x+4/x^2-8x+15,x-5/x^2+x-12,x-3/x^2-x-20 60%X + 80%X - 12 = X 7x-3x+x=60 *-----------------------------------------------*| 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 || 小学六年级下册数学解方程.. 要详细的.. 还要过程 都写下来...2x+3x=60 3.6x-2.8x=12 100x-x=198 18x+2x+60 5x+6x=12.1 6.6x-5x=8 4x-x=24 1.5x-x=1 1.9x+0.4x=9.2 x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x) 12x（x+x）=60 X=? x-2=(104-x)+2 6x-59=10x-75 (x+10)+(x-15)=280-x4（x-62)=x-38 60x-40=(60+20)*(x-5) 32x+32*0.5-25x+64x=24x+496-49x x+15=3*(109-x ) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(2x+5)=17(x-2)-4(2x-1) (13x+8)/3=5x-1x-60=2[(3561-x)+100]+1 (x+9)+12=2[(x-9)-1 4x+2x+x-3x=12 因式分解(x+1)(x+3)(x+5)(x+7)-12 x*x-3x=108 x=12?