(教材P100T3变式)化简: 22b-3a-32a-3b; 23x-y+2x-3y-32x-y; 3ab-b2-2ab+3a2-2ab-6ab-b2; 3x2y-6xy
百度试题 结果1 题目 6.(教材 P100 例5改编)计算: (1) 3a(2a-1); (2)-x(3x2-2x-2); (3)(x2-2y)(x2 y)2; (4)-2xy(x2-3y2)-3xy(2x2-2y2). 相关知识点: 试题来源: 解析 最佳答案 优质解答 反馈 收藏
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PURPOSE:To carry out various servicing operations in correspondence with various installing states such as a ceiling recess or a wall recess or the like by a method wherein a side surface of a main body is provided with a guide rail having a groove which can be moved in a horizontal direct...
解:(1)3a(2a-1) =6a^2-3a 解:(2)-x(3x^2-2x-2) =-3x^3+2x^2+2x 解:(3)(x^2-2y)(x^2y)^2 =x^2* x^4y^2+(-2y)* x^4y^2 =x^6y^2-2x^4y^3 解:(4)-2xy(x^2-3y^2)-3xy(2x^2-2y^2) =-2xy* x^2+(-2xy)* (-3y^2)+(-3xy)* 2x^2+(-3xy)...
6.(教材P100例5改编)计算:(1)3a(2a-1);(2) -x(3x^2-2x-2) ;(3) (x^2-2y)(x^2y)^2 ;(4) -2xy(x^2-3y^2)-3xy(2x^2-2y^2) . 相关知识点: 试题来源: 解析 6 (1)6a^2-3a;(2)-3x^3+2x^2+2x;(3) (1)6a^2-3a;(2)-3x^3+2x^2+2x;(3) 3a:(2)-3...
168元起降价提醒 当前规格: 净含量 1.8kg 规格 安格斯牛肋条2斤+M5牛肉片200g*5 全网比价 京东 最低 ¥168 京东 ¥168 京东 ¥168 京东 ¥168 京东 ¥168 京东 ¥168 京东 ¥168 京东 ¥168 京东 ¥168 京东 ¥168 京东 ¥168 ...
摘要: The new slab (1) consists of a granulated material made from old tyres, which is intimately mixed with a two-component binder and is thus made into a moulded material by moulding. The slab (1) possesses edge knobs (10) and edge knobs (13, 14), which are arranged on its ...
5.(教材P100例5改编)计算:(1)3a(2a-1);(2) -x(3x^2-2x-2) ;(3) (x^2-2y)(x^2y)^2 ;(4) -2xy(x^2-3y^2)-3xy(2x^2-2y^2) . 相关知识点: 试题来源: 解析 5.(1)6a2-3a;(2)-3x3+2x2+2x;(3)x6y2-2x+y3; (4) -8x^3y+12xy^3 ...