
แบบทดสอบก่อนเรียนบทเรียนที่ 2
Authored by ปริญญา เพิ่มเขตกรรม
Mathematics
8th Grade
Used 8+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
ข้อใดเป็นการแยกตัวประกอบของ x3 – 1
(x + 1)(x2 – x + 1)
(x – 1)(x2 + x + 1)
x2 – 2x + 1
x2 + 2x – 1
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
ข้อใดเป็นการแยกตัวประกอบของ 8x3 + y3
(2x + y)(x2 – 2xy + y2)
(2x – y)(x2 + 2xy + y2)
4x2 – 16xy + y2
4x2 + 16xy – y2
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
ข้อใดแยกตัวประกอบได้ถูกต้อง
x3 – 125 = (x – 5)(x2 + 5x – 15)
x3 + 64 = (x – 4)(x2 – 4x + 16)
x3 + 27 = (x + 3)(x2 – 3x + 9)
x3 – 216 = (x – 6)(x2 + 12x + 36)
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
ข้อใดเป็นการแยกตัวประกอบของ x3 + 1,000
(x + 10)(x2 – 10x + 100)
(x – 100)(x2 + 10x – 1,000)
(x + 100)(x2 – 10x – 1,000)
(x – 10)(x2 + 10x + 100)
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
พหุนามในข้อใดสามารถแยกตัวประกอบได้เป็น
(3 + 8x)(9 – 24x + 64x2)
9 – 128x3
27 + 512x3
9 + 128x3
27 – 512x3
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
พหุนามในข้อใดสามารถแยกตัวประกอบได้เป็น
(6 – 5x)(36 + 30x + 25x2)
216 – 125x3
36 + 125x3
216 + 625x3
36 - 125x3
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
ข้อใดเป็นการแยกตัวประกอบของ 27x3 – 8y3
(3x – 4y)(9x2 – 6xy + 4y2)
(3x + 4y)(7x2 + 14xy + 2y2)
(3x + 2y)(7x2 – 14xy + 2y2)
(3x – 2y)(9x2 + 6xy + 4y2)
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