配套习题- 整式的乘法（2） -【青果学院】

1/5单选题

难度：

1.计算(x-2)·(x+3)的结果是( )

A	x²-x-6
B	x²-x+6
C	x²+x-6
D	x²+x+6

正确答案：Qw==

6Kej562U77ya4oi1KHgtMinCtyh4KzMpPTxpbWcgd2lkdGg9MTg1IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzNFL0E2L3JCQUNKbFRJbEZ1QmdvM19BQUFDYmZtWGlkNDk2OS5wbmciPjxicj7mlYXpgIlD

2/5单选题

难度：

2.若(x+2)(x-4)=x²+mx+n，则m、n的值分别为()

A	2，8
B	2，-8
C	-2，-8
D	-2，8

正确答案：Qw==

6Kej562U77ya4oi1KHgrMikoeC00KT08aW1nIHdpZHRoPTE1IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzNFL0E2L3JCQUNKbFRJbEY2aHc2a2FBQUFCT1ZicjRiSTk4NS5wbmciPi00eCsyeC04PTxpbWcgd2lkdGg9ODYgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvM0UvRTUvckJBQ0oxVElsRjdEQ3pCaEFBQUJ6OEtaWkdJNDk5LnBuZyI+eDxzdXA+Mjwvc3VwPitteCtuPGJyPuKItG09PGltZyB3aWR0aD02OCBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC83My8xQS9yQkFDRTFUSWxGNlRJbTk4QUFBQmtXeUNKeWszNTkucG5nIj48YnI+5pWF6YCJQw==

3/5单选题

难度：

3.若(x+a)(x-2)的结果中不含x的一次项，则a的值等于()

A	0
B	1
C	2
D

正确答案：Qw==

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

4/5单选题

难度：

4.方程(x+2)(x-3)=x²-8的根是( )

A	x=2
B	x=-2
C
D	x=14

正确答案：QQ==

6Kej562U77ya

5/5单选题

难度：

5.如图所示，阴影部分面积为 ( )

A	ac+bc
B	ac+(b-c)
C	a·c+(b-c)·c
D	a+b+2c(a-c)+(b-c)

正确答案：Qw==

6Kej562U77ya6Zi05b2x6YOo5YiG55qE6Z2i56ev562J5LqOYWMrYmM8aW1nIHdpZHRoPTI0IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzczLzFBL3JCQUNFMVRJbEdtajFqeE9BQUFCTlNqM1pTbzE4MC5wbmciPjxicj7mlYXpgIlD