北师大版数学七年级下册计算题大全 (75)

  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

(-a 2b)4

2) -5x 2y 2(3x 2yz -5y 2

z) a)(21

a

) (x -6y)(x (-3a -6b)(2a +4b)

(5x-9y)(x+4y)

q)

3

x a4x3

2)

(-4πr3h+3πr h2)÷(

5

1

πrh)

(6a

2ab2)2

3y3z3

2z3)

(4x)3•y3÷(10x3y3)

(-a2b)4

2)

-6x3y3(6x2yz+4y2

z)

a)(

2

1 a

)

(x-3y)(x

(-5a-6b)(5a+2b)

(8x-7y)(x+

2y)

q)

a4x

a4x4

2)

(-4πr 2h +6πr h 2

)÷(51πrh) (10a 2

ab 2)3

3y 2z

3y 2z 2) (2x)2•y 2÷(2x 3y 3)

(-a 2b)3

2)

-5x 2y 3(3x 2yz +2y 2z)

a)(81

a

(x -4y)(x (-3a -3b)(8a +4b) (7x -8y)(x +3y)

3x

a 4x 3

ax 2) (-4πr 3h +2πr h 3

)÷(21πrh)

(2a 2

ab 2)3

2y 3z

32z 2)

(8x)3•y2÷(14x2y3)

(-a2b)2

2)

-3x3y3(4x2yz-2y2

z)

a)(

2

1

a

(x -2y)(x

(-5a -5b)(6a +2b) (6x -9y)(x +3y)

2x

a 2x 3

ax 2) (-3πr 2h +6πr h 3

)÷(51πrh)

(8a2

ab2)2

x2y2z

32z3) (4x)2•y2÷(6x2y2)

(-a2b)4

ab2)

-3x2y3(2x2yz+3y2z)

a)(21a

) (x -4y)(x (-2a -5b)(9a +4b) (4x -2y)(x +

2y)

q)

4x

a 3x 3

2) (-2πr 2h +6πr h 2

)÷(51πrh)

(6a 2

2)2

2y 3

z 2y 2z 2) (10x)2•y 2÷(4x 3y 3)

(-a 2b)4÷(-1/1ab 2) -4x 3y 3(9x 2yz +5y 2z)

a)(61a

) (x -5y)(x (-4a -6b)(5a +2b)

(7x -9y)(x +4y)

2

x a 4x 4

ax 2) (-2πr 3h +6πr h 2

)÷(31πrh) (6a

2

2)3

x 3y 2z

32z 3) (8x)2•y 3÷(6x 3y 3)

(-a 2b)4÷(-1/1ab 2) -5x 2y 3(4x 2yz +4y 2

z) a)(81

a

)

(x-8y)(x

(-5a-4b)(2a+3b)

(7x-2y)(x+

2y)

a4x

a3x2

2)

(-5πr 3h +6πr h 3

)÷(41πrh) (2a 2

ab 2)3

3y 2z

32z 2) (4x)2•y 3÷(14x 2y 2)

(-a 2b)2

ab 2)

-5x 2y 2(5x 2yz -3y 2z)

a)(101

a

) (x -5y)(x y) (-2a -3b)(3a +3b) (5x -5y)(x +2y)

q)

4x

a 3x 2

2) (-4πr 3h +6πr h 2

)÷(31πrh)

(8a 2

2)2

2y 2z

2y 3z 2)

(10x)2•y3÷(6x3y3)

(-a2b)3

ab2)

-5x3y2(8x2yz+5y2

z)

a)(

8

1 a

)

(x -5y)(x y)

(-2a -6b)(7a +4b) (6x -2y)(x +3y)

4x

a 2x 2

ax 2) (-3πr 2h +6πr h 2

)÷(41πrh)

相关文档
最新文档