IG2Ashley班-因式分解小测
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
榆婷 陈
Used 27+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列等式中,从左向右的变形为因式分解的是( )
x³﹣x=x(x﹣1)(x+1)
a²(a﹣1)=a³﹣a²
a²﹣2a﹣1=a(a﹣2)﹣1
(a﹣3)(a+3)=a²﹣9
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列等式从左到右的变形中,属于因式分解的是( )
x²﹣4+4x=(x+2)(x﹣2)+4x
(x+3)(x﹣1)=x²+2x﹣3
x²﹣6x=x(x﹣6)
a(x﹣y)=ax﹣ay
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在多项式8a³b²﹣4a³bc中,各项的公因式是( )
a³b
4a³b
4a³
﹣a³
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
多项式﹣8x2y³z+12xy²z³﹣24x³yz²的公因式是( )
﹣xyz
﹣4x³y³z³
﹣4xyz
﹣x³y³z³
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
因式分解:a²﹣4=( )
(a+4)(a﹣4)
(a+4)(a﹣2)
(a+2)(a﹣4)
(a+2)(a﹣2)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列各式中,能用平方差公式分解因式的是( )
﹣x²﹣y²
x²﹣5y²
x²+4y²
﹣x²+y²
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把a²﹣2a+1分解因式,正确的是( )
a(a﹣2)+1
(a+1)²
(a+1)(a﹣1)
(a﹣1)²
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