Câu hỏi trắc nghiệm về PHÉP CỘNG VÀ PHÉP TRỪ ĐA THỨC MỘT BIẾN
Quiz
•
Mathematics
•
7th Grade
•
Hard
Phan *_*
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của phép cộng (3x^2 +2x+5)+(2x^2 −x−3) là:
5x^2 +x+2
5x^2 +x−2
5x^2 +3x+2
5x^2 +x−8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khi thực hiện phép trừ (4x^3 −2x+7)−(x^3 +3x−5), ta được kết quả:
3x^3 −5x+12
3x^3 −5x+2
3x^3 +x+12
5x^3 −x+2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đa thức đối của 5x^2 −3x+4 là:
−5x^2 −3x−4
5x^2 +3x−4
−5x^2 +3x−4
−5x^2 +3x+4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của phép cộng (6x^4 −3x^2 +x)+(2x^4 +x^2 −4x) là:
8x^4 −2x^2 −3x
8x^4 −4x^2 −3x
8x^4 −2x^2 −3x
8x^4 −2x^2 −5x
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của phép trừ (5x^3 +2x−7)−(3x^3 −x+4) là:
2x^3 +3x−11
8x^3 +3x−11
2x^3 +3x−3
8x^3 −x−3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giá trị của đa thức P(x)=2x^2 −3x+1 tại x=−1 là:
6
4
2
0
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khi cộng hai đa thức P(x)=3x^2 +x−4 và Q(x)=2x^2 −x+5, ta được:
5x^2 +2x+1
5x^2 −2x+1
5x^2 +1
5x^2 −2x−1
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