解析 (1) (x2−2x−1)(x2+x+1)(2) (x+1)2(x2−x+3)(1) 2 x -2x -1 x2 x 1(2) 3 +2x 1 2 -1x 3 结果一 题目 Factorize:(1) x4−x3−2x2−3x−1(2) x4+x3+2x2+5x+3 答案 (1) (x2−2x−1)(x2+x+1)(2) (x+1)2(x2−x+3) 结果二 题...
(1) Original expression=x4+x2y2+14y4−x2y2=(x2+12y2)2−(xy)2=14(2x2+2xy+y2)(2x2−2xy+y2) (2) Original expression=x4+8x2y2+16y4−9x2y2=(x2+4y2)2−(3xy)2=(x2+3xy+4y2)(x2−3xy+4y2) (3) Original expression=−(a4−18a2+81)=−(a2...
Factorize:(1) x10+x5−2(2) x9+x6+x3−3(3) x4+x3−3x2−4x−4(4) x4+x3+2x2+x+1 答案 Shown in analysis.(1) Original expression=(x10−1)+(x5−1)=(x5−1)(x5+1)+(x5−1)=(x5−1)(x5+2) =(x−1)(x4+x3+x2+x+1)(x5+2)(2) Original expression=(...
⑴分解因式:x4+2x3+3x2+2x+1;⑵分解因式:x4+7x3+14x2+7x+1;⑶分解因式:x4+y4+(x+y)4. 答案 ⑴法一:原式=x4+2x3+3x2+2x+1=x4+2x3+x2+2x2+2x+1=(x2+x)2+2(x2+x)+1=(x2+x+1)2;法二:原式=(x4+1)+2x(x2+1)+3x2=(x2+1)2−2x2+2x(x2+1)+3...
(3) Original expression =(x4+2x2+1)−(x2+2ax+a2)=(x2+1)2−(x+a)2=(x2+x+a+1)(x2−x−a+1) (4) Original expression =(x4+y4+z4−2x2y2−2y2z2+2z2x2)−4z2x2 =(x2−y2+z2+2zx)(x2−y2+z2−2zx)=[(x+z)2−y2][(x−z)2−y2...
V = X * V / np.abs(V) return VSD = GlobalData()class BarPlot():def __init__(self, parent=None, width=8, height=6): # Create the mpl Figure and FigCanvas objects. # 5x4 inches, 100 dots-per-inch global SD self.fig = Figure((width, height), dpi=100) ...
答案 【解析】(1) (x^2-2x-1)(x^2+x+1)(2) (x+1)^2(x^2-x+3)相关推荐 1Factorize:(1) x4−x3−2x2−3x−1(2) x4+x3+2x2+5x+3 2【题目】Factorize:(1) x^4-x^3-2x^2-3x-1(2) x^4+x^3+2x^2+5x+3 反馈...
(2) Original expression=(x9−1)+(x6−1)+(x3−1)=(x−1)(x2+x+1)(x6+2x3+3) (3) Original expression=(x4+x3+x2)−(4x2+4x+4)=(x2+x+1)(x2−4)=(x2+x+1)(x+2)(x−2) (4) Original expression=(x4+x3+x2)+(x2+x+1)=(x2+x+1)(x2+1)结果...