ÔN TẬP TOÁN 9 HKII
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Medium
Tùng Ngô
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình nào dưới đây là phương trình bậc hai một ẩn ?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình nào dưới đây là phương trình trùng phương ?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hệ số a, b, c của phương trình 3x2 + x – 2 = 0
a = 3 ; b = 1 ; c = – 2
a = 3 ; b = 0 ; c = – 2
a = 3 ; b = 1 ; c = 2
a = 2 ; b = 1 ; c = – 2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình ax2 + bx + c = 0 (a ≠ 0) có hai nghiệm x1; x2 . Theo hệ thức Vi - ét, ta có:
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình ax2 + bx + c = 0 (a ≠ 0) có a + b + c = 0 thì phương trình có hai nghiệm là:
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình ax2 + bx + c = 0 (a ≠ 0) có a - b + c = 0 thì phương trình có hai nghiệm là:
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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