Bài 27. Phép nhân đa thức một biến

Quiz
•
Mathematics
•
7th Grade
•
Hard
THUY TRINH
Used 8+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của phép nhân (x+5).(-x-3) là
x2+2x+15
-x2-15
-x2-8x-15
-x2+2x-15
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tìm giá trị của a biết (x+1)(x-2) = x2+ax - 2
2
-2
1
-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của phép nhân 2x . (3x3 + 7x − 9) là đa thức nào trong các đa thức sau?
5x3 + 9x2 − 7x.
6x2 + 14x − 18
6x3 + 14x2 − 11x
6x3 + 14x2 − 18x
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của phép nhân (5x − 2)(2x + 1) là đa thức nào trong các đa thức sau?
10x2 + x − 2
10x2 − x + 4
10x2 − 3x − 2
10x2 − x − 2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của phép nhân (x + 2)(3x2 + 4x − 1) là đa thức nào trong các đa thức sau?
3x3 + 10x2 + 7x − 2
2x3 + 10x2 + 8x − 2
3x3 + 10x2 + 7x + 2
4x3 + 6x2 + 7x − 2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của phép nhân (−2x2 + 5x +3)(2x2 − 3x − 1) là đa thức nào trong các đa thức sau?
4x4 + 16x3 − 7x2 − 14x − 3
−4x4 + 16x3 − 7x2 − 14x − 3
−4x4 + 16x3 − 7x2 − 14x + 3
−4x4 + 16x3 − 7x2 − 4x − 3
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