Bài 1: Phân tích đa thức 6x2y2 + 12xy thành nhân tử ta được
PHÂN TÍCH THÀNH NHÂN TỬ

Quiz
•

Thuận A
•
Mathematics
•
8th Grade
•
2 plays
•
Hard
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6xy(xy + 2)
6x(xy + 2)
x3y3 + 8
(x3y3 + 2)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bài 2: Phân tích đa thức 2x(x + 1) - y( x + 1) thành nhân tử ta được
(x + 2y)3
2x(x + 1)
(2x – y)2
(8x + y)
3.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Bài 3: Chọn câu đúng.
(5x – 1)2 – x2 = (4x - 1 )(7x -1)
(5x – 1)2 – x2 = (4x - 1 )(6x -3)
(5x – 1)2 – x2 = (9x - 1 )(6x -1)
(5x – 1)2 – x2 = (4x - 1 )(6x -1)
4.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Bài 4: Chọn câu đúng.
x(x – 2y) – (x – 2y) = (x – 2y)(x - 1)
x(x – 2y) – (x – 2y) = (x – 2y)(x - 4)
x(x – 2y) – (x – 2y) = (x – 2y)(x + 1)
x(x – 2y) – (x – 2y) = (x – 2y)(x - 6)
5.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Bài 5: Phân tích a2 – 16 thành tích thành nhân tử ta được
(a – 4)(a + 4)
(a + 3)2
(3a – 4)(3a + 8)
(a2 + 9)
6.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Bài 6: Cho x3 – 23 = (x – 2)(…). Biểu thức thích hợp điền vào dấu … là
2x2 + 8x + 8
x2 + 8x + 1
x2 – 8x+ 16
x2 + 2x + 4
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