平方差公式小测验(1)

平方差公式小测验(1)

8th Grade

6 Qs

quiz-placeholder

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平方差公式小测验(1)

平方差公式小测验(1)

Assessment

Quiz

Mathematics

8th Grade

Medium

Created by

Ooi Xi黄丽茜

Used 9+ times

FREE Resource

6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

因式分解 x29x^2-9  

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

 (x+9)(x9) \left(x+9\right)\left(x-9\right)\   

 (x2+3)(x23)\left(x^2+3\right)\left(x^2-3\right)  

 (x2+9)(x29)\left(x^2+9\right)\left(x^2-9\right)  

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

因式分解 x2y2x^2-y^2  

 (xy)(x+y)\left(x-y\right)\left(x+y\right)  

 (x2+y2)(x2y2)\left(x^2+y^2\right)\left(x^2-y^2\right)  

 (x2+y)(x2y)\left(x^2+y\right)\left(x^2-y\right)  

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

因式分解 4a294a^2-9  

 (2a+3)(2a3) \left(2a+3\right)\left(2a-3\right)\   

 (4a+9)(4a9) \left(4a+9\right)\left(4a-9\right)\   

 (2a+9)(2a9)\left(2a+9\right)\left(2a-9\right)  

 (4a2+9)(4a29)\left(4a^2+9\right)\left(4a^2-9\right)  

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

因式分解 x216y2x^2-16y^2  

 (x+4y)(x4y) \left(x+4y\right)\left(x-4y\right)\   

 (x2+16y2)(x216y2)\left(x^2+16y^2\right)\left(x^2-16y^2\right)  

 (x+16y)(x16y)\left(x+16y\right)\left(x-16y\right)  

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

因式分解 (x+y)2z2\left(x+y\right)^2-z^2  

 (x+y+z)(x+yz)\left(x+y+z\right)\left(x+y-z\right)  

 (x2+y2+z2)(x2+y2z2)\left(x^2+y^2+z^2\right)\left(x^2+y^2-z^2\right)  

 (x2+y2+z)(x2+y2z)\left(x^2+y^2+z\right)\left(x^2+y^2-z\right)  

  (x+y+z2)(x+yz2)\left(x+y+z^2\right)\left(x+y-z^2\right)  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

因式分解 (2a+b)2(a+b)2\left(2a+b\right)^2-\left(a+b\right)^2  

 (3a+2b)(a+2b) \left(3a+2b\right)\left(a+2b\right)\   

 a(3a+2b)a\left(3a+2b\right)  

 (2a2+b2)(a+b2)\left(2a^2+b^2\right)\left(a+b^2\right)