แบบทดสอบครั้งที่ 3
Quiz
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Hard
สากีนา สาเหาะ
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(x4 - 9x2 + 6x + 7) - (x3 + 4x2 -5x - 2) มีค่าเท่ากับเท่าใด
x4 - x3 -13x2 - 11x - 9
x4 + x3 -13x2 - 11x + 9
x4 - x3 +13x2 + 11x + 9
x4 - x3 -13x2 + 11x + 9
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(2a4 + 5a3 + a2 - 3a - 1) - (a4 + 3a3 + 6a2 - 2) มีค่าเท่ากับเท่าใด
a4 + 2a3 - 5a2 - 3a + 1
a4 - 2a3 - 5a2 - 3a + 1
a4 + 2a3 + 5a2 + 3a + 1
a4 - 2a3 - 5a2 - 3a - 1
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(2x2 + x - 2) - (x2 - 3x) ได้ผลลัพธ์ตรงกับข้อใด
x2 - 4x - 2
x2 + 4x + 2
x2 - 4x + 2
x2 + 4x - 2
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(2x2 - 6x - 5) - (x2 - 3x - 5) เท่ากับเท่าใด
x2 - 3x
x2 + 3x
-x2 - 3x
-x2 + 3x
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
ข้อใดต่อไปนี้ไม่ถูกต้อง
(7a2 - 2a + 5) + (8a2 - 8a - 5) = 15a2 - 10a
(3a2 - 10a - 7) + (6a2 - 4a - 6) = 9a2 - 6a + 13
(5a2 + 8a - 2) + (10a2 - 3a - 4) = 15a2 + 5a - 6
(11a2 - 14a - 6) + (9a2 + 12a + 10) = 20a2 - 2a + 4
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
ผลบวกของ 2x2 - 3x + 1 กับ 4x2 + 5 ตรงกับข้อใด
6x2 + 3x + 6
6x2 + 3x - 6
6x2 - 3x + 6
6x2 - 3x - 6
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
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