U8A HW 4

U8A HW 4

9th Grade

6 Qs

quiz-placeholder

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U8A HW 4

U8A HW 4

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Rebecca Koeller

Used 6+ times

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6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify:  (48x2+4x)+(67x+3x2)\left(4-8x^2+4x\right)+\left(6-7x+3x^2\right)  

 5x43x2+10-5x^4-3x^2+10  

 5x23x+10-5x^2-3x+10  

 2x32x^3  

 24x428x2+24-24x^4-28x^2+24  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify:  (8x24x42x)(3x38x2+2x)\left(8x^2-4x^4-2x\right)-\left(3x^3-8x^2+2x\right)  

 7x4+16x24x-7x^4+16x^2-4x  

 12x4+3x34x12x^4+3x^3-4x  

 5x105x^{10}  

 4x43x3+16x24x-4x^4-3x^3+16x^2-4x  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify:  7x(8x24x1)7x\left(8x^2-4x-1\right)  

 56x328x27x56x^3-28x^2-7x  

 56x228x756x^2-28x-7  

 15x3+3x2+6x15x^3+3x^2+6x  

 21x621x^6  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify:  (5b+7)(b+7)\left(5b+7\right)\left(b+7\right)  

 5b2+35b+7b+495b^2+35b+7b+49  

 6b2+20b+146b^2+20b+14  

 5b2+42b+495b^2+42b+49  

 96b396b^3  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify:  (8x1)(2x5)\left(8x-1\right)\left(2x-5\right)  

 16x242x+516x^2-42x+5  

 16x240x2x+516x^2-40x-2x+5  

 21x3-21x^3  

 10x2+4x610x^2+4x-6  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify:  (6k+6)(5k1)\left(6k+6\right)\left(5k-1\right)  

 30k2+30k6k630k^2+30k-6k-6  

 48k348k^3  

 11k2+5k+511k^2+5k+5  

 30k2+24k630k^2+24k-6