2(5x十3)≤x-3(1-2x)

已知1十x十x^2 十x^3=0,求x十x^2十x^3十x^4+x^5十x^6+x^7十x^8的值 X.(X十1)x(X十2)x(x十3) =360 (x^3十3x^2-5x十6)-(2x^2-5x十1)-(x^3十x^2-2) 3x(2x十1)一(2x十3)(2x十3)(x一5) X-1二2X十3 化简求值x^2十2x十1/x十2÷x^2-1/x-1-x/x十2,x竽等于根号3 x^2(x十3)十x(x^2一3)十3x(x^2+x一1) 用不用化到x(5x^2十6x一6) 数学题 5x4次方十4x立方十3x平方十2x十1除以x十2的余数 解方程:(x一3)(x十1)=x(2x十3)一(x的平方十1) 1/(x^2一4x十3)十1/(x^2一8x十15)十1/(x^2-12x十35)十1/(x^2一16x十63)= (7一2X十x平方)一(5十3X一2x平方) (2x三次方一x十6)x(3x2十5x一2) x十3/x+2=k/(x+1)(x+2)十1 25题 (x十3)(x十4)一x(x+2)一5 |x-2|十|x-3|一|x-1|的最大值 2x的2次方十1-3x十7-3x的2次方十5求同类项 3(2x一1)十5(1一2x)十2x十4=0怎么解 2(5x十3)≤x-3(1-2x)