(x^+1)^-20(x^+1)+100因式分解
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(x^+1)^-20(x^+1)+100因式分解(x^+1)^-20(x^+1)+100因式分解(x^+1)^-20(x^+1)+100因式分解(x²+1)²-20(x²
(x^+1)^-20(x^+1)+100因式分解
(x^+1)^-20(x^+1)+100因式分解
(x^+1)^-20(x^+1)+100因式分解
(x²+1)²-20(x²+1)+100
=(x²+1)²-20(x²+1)+10²
=(x²+1-10)²
=(x²-9)²
=(x-3)²(x+3)²
x(x-1)(x-2)...(x-99)(x-100)
x/x+(1-x)/x-1/x
x*x*(1/4)=20x
(x^+1)^-20(x^+1)+100因式分解
(20+x)/(100+x)=1/2
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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/2+x/8+x/12+x/20=1
因式分解(x+1)(x-2)(x-3)(x-6)+20
x/6+x/12+x/20+x/30=1
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
1/X(X+1)+1/(X+1)(X+2)+1/(X+2)(X+3).+1/(X+99)(X+100)=
计算:1/x(x-1)+1/(x-1)(x-2)+1/(x-2)(x-3)+.+1/(x-19)(x-20)
1/(x+1)(x+2)+1/(x+2)(x+3)+1/(x+3)(x+4)+...+1/(x+100)(x+101)
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解方程：2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
1X+2X+3X…+98X+99X+100X=50500X X等于多少?
1x+2x+3x+4x+5x+6x+7x…+99x=100