1x²,3x²,5x²,7x,9x²,11x²,13x……则第2013
1x²,3x²,5x²,7x,9x²,11x²,13x……则第2013
1x,3x,5x,7x,9x,11x,13x,.则第2013个单项式
(x-2)(x-3)+2(x+6)(x-5)-3(x²-7x+13)化简
X³+5x²+3x+9 x四次方—7x²+1
((x²-5x+6)/(12-7x+x²))²÷((x²+3x+2)/(x
x²+3x+9/(x²-27)+6x/(9x-x²)-(x-1)/(6+2x)
x(x²-1)+2x²(x+1)-3x(2x-5)计算
f(x)=1+x-x²/2+x³/3-x^4/4+…+x^2013/2013
(x+1)(x+2)(x+3)x+1=0则3x²+9x+7
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
若x³+x²+x+1=0,则x^-27+x^-26+……+x^-1+1+x+x²+……+x
2x^6×x³-3x^9+5x²×x^7等于多少