

第10章 簡易多項式的運算
Presentation
•
Mathematics
•
9th Grade
•
Medium
Nrlson Sit
Used 2+ times
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1 Slide • 14 Questions
1
By Nrlson Sit
2
Multiple Choice
下列哪些是同類項?
2x,2x2
3x5y , xy5
4xyz,zyx
x2/2,2/x2
3
Multiple Choice
下列哪項是單項式?
2x + 1
3x5
x2
yx2
4
Draw
寫出-8x2y的係數和次數。
5
Multiple Choice
求多項式 6x3+x2+4x−5 的常數項。
-5
-1
4
5
6
Multiple Choice
以下哪項並不是按 x 的降冪排列?
-2x7 - 3x6 - 4x5 - 5x4
10x3 + 9x2 + 8x + 7
5x4 - 6x3 + 7x2 - 8x
9x2 + 8x3 + 7x4 + 6x5
7
Draw
求多項式 h2+21h−1 在h =-2 情況中的值。
8
Multiple Choice
(8a + b)(a – 3b) =
8a2 – 3b2
8a2 – 24ab + 3b2
8a2 – 23ab – 3b2
8a2 + 25ab + 3b2
9
Multiple Choice
展開 (–2y)(6 – 4y)。
–16y
–12y + 8y2
–8y – 6y2
–4y2
10
Draw
2a2 + (2a – 7)2
11
Multiple Choice
問多項式 5a3+3a2b2c2−2abc−b5 的次數是多少? 。
4
5
6
7
12
Multiple Choice
-4(2a-1)+3(-a+2)=
-11a+10
-11a+2
-5a+2
-5a-2
13
Multiple Choice
求當 x = 2 和 y = –1 時 −x2/8+xy/4+3y2
3
2
–3
–4
14
Draw
大東買了x 個哈密瓜和 (x - 1) 個西瓜,每個哈密瓜和每個西瓜的售價分別為 $40 和 $(2x + 7)。問他共須付款多少以購買這些哈密瓜和西瓜?
15
Draw
(−(2x+4x2+6x3+⋯+198x99)+(2x+5x2+8x3+⋯+293x98+296x99)的展開式中x30的係數。
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