(a+b)(m+n)= ???
Middle school math

Quiz
•
Mathematics
•
5th Grade
•
Hard
Lin Sampson
Used 30+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ab+am+bn+bm
am+an+bm+bn
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a2n-1.an+5=a16,that n=???
6
4
3
1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Simplification:(x-y)3.(x-y)4.(x-y)2
solution:simple form(x-y)3+4+2=(x-y)9
solution:simple form(x-y)2+3+1=(x-y)6
solution:simple form(x-y)5+3+2=(x-y)10
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate(a3)2.a2 The result is ( )
A. a8
B. a9
C. a10
D. a11
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The following calculation is correct( )
A. 2a2+3a=5a3
B. a2.a3=a6
C. (a3)2=a6
D. a3-a3=a
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If(am.bn.b)3=a9b15,that m,n the value is( )
A. m=9,n=-4
B. m=3,n=4
C. m=4,n=3
D. m=9,n=6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate(-½ xy2)3 the result is( )
A. ⅙ x3 y5
B. -⅛ x3 y6
C. ⅙ x3 y6
D. -⅛ x3 y5
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(π-3. 14)0 inverse number( )
A. 3. 14-π
B. 0
C. 1
D. -1
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Here are my questions for everyone:① 2a+3b=5ab;② (3a3)2=6a6;③a6÷a2=a3④a2.a3=a5。The right number is( )
A. ①
B. ②
C. ③
D. ④
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