HĐT 1,2,3
Interactive Video
•
Mathematics
•
8th Grade
•
Hard
Nguyễn Nhẫn
FREE Resource
3 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
(x - 2y)2 = x2 - .... + 4y2
Biểu thức cần điền vào chỗ trống là
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Viết biểu thức sau thành bình phương của một tổng hoặc một hiệu ta được
x2 - 8x + 16
(x - 8)2
(x + 4)2
(x - 4)2
(x + 8)2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(3x - 2y)(3x + 2y)
9x - 4y
9x + 4y
3x2 - 2y2
9x2 - 4y2
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