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下列各式中,结果不是整式的是()A.1a2-2ab+b2•(a-b)22abB.x-6x÷x-6x2C.aba-b•(ab-b2)D.(6x2y)2÷(2yx)2

题目详情

下列各式中,结果不是整式的是(  )

A.

1
a2-2ab+b2
(a-b)2
2ab

B.

x-6
x
÷
x-6
x2

C.

ab
a-b
•(ab-b2

D. (6x2y)2÷(

2y
x
2

下列各式中,结果不是整式的是(  )

下列各式中,结果不是整式的是(  )

A.

1
a2-2ab+b2
(a-b)2
2ab

1
a2-2ab+b2
(a-b)2
2ab
1
a2-2ab+b2
1a2-2ab+b211a2-2ab+b2a2-2ab+b2a2-2ab+b2a2-2ab+b22-2ab+b2b2b22
(a-b)2
2ab
(a-b)2
2ab
(a-b)22ab(a-b)2(a-b)2)2)222ab2ab

B.

x-6
x
÷
x-6
x2

x-6
x
÷
x-6
x2
x-6
x
x-6xx-6x-6xx
x-6
x2
x-6
x2
x-6x2x-6x-6x2x2x2x22

C.

ab
a-b
•(ab-b2

ab
a-b
•(ab-b2
ab
a-b
aba-bababa-ba-b2

D. (6x2y)2÷(

2y
x
2

22
2y
x
2
2y
x
2yx2y2yxx2
▼优质解答
答案和解析
A、原式=
1
(a-b)2
(a-b)2
2ab
=
1
2ab
,结果不是整式;
B、原式=
x-6
x
x2
x-6
=x,结果是整式;
C、原式=
ab
a-b
•a(a-b)=a2b,结果是整式;
D、原式=36x4y2
x
4y2
=9x5,结果是整式,
故选:A.
1
(a-b)2
1(a-b)2111(a-b)2(a-b)2(a-b)22•
(a-b)2
2ab
=
1
2ab
,结果不是整式;
B、原式=
x-6
x
x2
x-6
=x,结果是整式;
C、原式=
ab
a-b
•a(a-b)=a2b,结果是整式;
D、原式=36x4y2
x
4y2
=9x5,结果是整式,
故选:A.
(a-b)2
2ab
(a-b)22ab(a-b)2(a-b)2(a-b)222ab2ab2ab=
1
2ab
,结果不是整式;
B、原式=
x-6
x
x2
x-6
=x,结果是整式;
C、原式=
ab
a-b
•a(a-b)=a2b,结果是整式;
D、原式=36x4y2
x
4y2
=9x5,结果是整式,
故选:A.
1
2ab
12ab1112ab2ab2ab,结果不是整式;
B、原式=
x-6
x
x2
x-6
=x,结果是整式;
C、原式=
ab
a-b
•a(a-b)=a2b,结果是整式;
D、原式=36x4y2
x
4y2
=9x5,结果是整式,
故选:A.
x-6
x
x-6xx-6x-6x-6xxx•
x2
x-6
=x,结果是整式;
C、原式=
ab
a-b
•a(a-b)=a2b,结果是整式;
D、原式=36x4y2
x
4y2
=9x5,结果是整式,
故选:A.
x2
x-6
x2x-6x2x2x22x-6x-6x-6=x,结果是整式;
C、原式=
ab
a-b
•a(a-b)=a2b,结果是整式;
D、原式=36x4y2
x
4y2
=9x5,结果是整式,
故选:A.
ab
a-b
aba-babababa-ba-ba-b•a(a-b)=a22b,结果是整式;
D、原式=36x44y22•
x
4y2
=9x5,结果是整式,
故选:A.
x
4y2
x4y2xxx4y24y24y22=9x55,结果是整式,
故选:A.