Sum and difference of cubes

Sum and difference of cubes

7th - 8th Grade

7 Qs

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Sum and difference of cubes

Sum and difference of cubes

Assessment

Quiz

Mathematics

7th - 8th Grade

Practice Problem

Medium

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

  x3+27x^3+27  

 (x3)(x2+3x+9)\left(x-3\right)\left(x^2+3x+9\right)  

 (x+27)(x+27x+54)\left(x+27\right)\left(x+27x+54\right)  

 (x+3)(x23x+9)\left(x+3\right)\left(x^2-3x+9\right)  

 (x+3)(x2+3x+9)\left(x+3\right)\left(x^2+3x+9\right)  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 9a3649a^3-64  

PRIME

 (3a4)(3a2+12a+16)\left(3a-4\right)\left(3a^2+12a+16\right)  

 (a4)(9a2+4a+16)\left(a-4\right)\left(9a^2+4a+16\right)  

 (3a+4)(6a212a)\left(3a+4\right)\left(6a^2-12a\right)  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x3y3x^3-y^3  

 (xy)3\left(x-y\right)^3  

PRIME

 x(x2y2)x\left(x^2-y^2\right)  

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

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 54x3+8x54x^3+8x  

 (6x2)(9x2+12x+4)\left(6x-2\right)\left(9x^2+12x+4\right)  

 2x(27x2+4)2x\left(27x^2+4\right)  

 (6x+2)(9x212x+4)\left(6x+2\right)\left(9x^2-12x+4\right)  

PRIME

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

(_______) (x26x+36)\left(x^2-6x+36\right)  

PRIME

 (x6)\left(x-6\right)  

 (x+6)\left(x+6\right)  

 (x29)\left(x^2-9\right)  

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 (5a7)(25a2+35a+49)\left(5a-7\right)\left(25a^2+35a+49\right)  

___________=

 (25a349)\left(25a^3-49\right)  

 (125a3343)\left(125a^3-343\right)  

PRIME

None of the above

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 512y31512y^3-1  

= (8y-1)(________)


 (16y2+8y+1)\left(16y^2+8y+1\right)  

PRIME

 (64y28y+1)\left(64y^2-8y+1\right)  

 (64y2+8y+1)\left(64y^2+8y+1\right)