สอบกลางภาค

สอบกลางภาค

7th Grade

30 Qs

quiz-placeholder

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สอบกลางภาค

สอบกลางภาค

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Easy

Created by

Surasak Channgamthiang

Used 5+ times

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30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (x1)225\left(x-1\right)^2-25  

 x2+2x24x^2+2x-24  

 x22x24x^2-2x-24  

 2x2+x122x^2+x-12  

 2x22x+222x^2-2x+22  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 x3+64x^3+64  

 (x16)(x4)\left(x-16\right)\left(x-4\right)  

 (x4)(x24x+16)\left(x-4\right)\left(x^2-4x+16\right)  

 (x+4)(x2+4x+16)\left(x+4\right)\left(x^2+4x+16\right)  

 (x+4)(x24x+16)\left(x+4\right)\left(x^2-4x+16\right)  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 8x32168x^3-216  

 (2x6)(4x2+12x+36)\left(2x-6\right)\left(4x^2+12x+36\right)  

 (2x6)(x2+12x+36)\left(2x-6\right)\left(x^2+12x+36\right)  

 (2x6)(4x+36)\left(2x-6\right)\left(4x+36\right)  

 (2x+6)(4x36)\left(2x+6\right)\left(4x-36\right)  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 x2+14x+49x^2+14x+49  

 (x7)(x7)\left(x-7\right)\left(x-7\right)  

 (x+7)(x7)\left(x+7\right)\left(x-7\right)  

 (x+7)(x+7)\left(x+7\right)\left(x+7\right)  

 (x49)(x1)\left(x-49\right)\left(x-1\right)  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 16x224x+916x^2-24x+9  

 (4x3)(4x+3)\left(4x-3\right)\left(4x+3\right)  

 (4x9)(4x1)\left(4x-9\right)\left(4x-1\right)  

 (4x3)(4x3)\left(4x-3\right)\left(4x-3\right)  

 (16x1)(x9)\left(16x-1\right)\left(x-9\right)  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

ข้อใดคือสูตรการเเยกตัวประกอบผลต่างกำลังสอง

22=()(+)น^2-ล^2=\left(น-ล\right)\left(น+ล\right)

(+)2=2+2+2\left(น+ล\right)^2=น^2+2นล+ล^2

()2=(22+2)\left(น-ล\right)^2=\left(น^2-2นล+ล^2\right)

ไม่มีข้อใดถูกต้อง

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

ข้อใดคือสูตรการเเยกตัวประกอบที่เป็นผลบวกกำลังสองสมบูรณ์

22=()(+)น^2-ล^2=\left(น-ล\right)\left(น+ล\right)

(+)2=2+2+2\left(น+ล\right)^2=น^2+2นล+ล^2

()2=22+2\left(น-ล\right)^2=น^2-2นล+ล^2

3+3=(+)(2+2)น^3+ล^3=\left(น+ล\right)\left(น^2-นล+ล^2\right)

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