Quiz 9.1/9.2 Operations with Rational Expressions

Quiz 9.1/9.2 Operations with Rational Expressions

9th - 12th Grade

12 Qs

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Quiz 9.1/9.2 Operations with Rational Expressions

Quiz 9.1/9.2 Operations with Rational Expressions

Assessment

Quiz

Mathematics

9th - 12th Grade

Easy

Created by

Yoslaine Valdes

Used 14+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify:
 x2+10x+24x2x20\frac{x^2+10x+24}{x^2-x-20}  


 x+6x+4\frac{x+6}{x+4}   x4x\ne-4  

 (x+6)(x+4)\left(x+6\right)\left(x+4\right)   x6, x4x\ne-6,\ x\ne-4  

 x+6x+6   x6x\ne-6  

 x+6x5\frac{x+6}{x-5}   x5, x4x\ne5,\ x\ne-4  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Multiply:

 x2x6x3x+9x+2\frac{x^2-x-6}{x-3}\cdot\frac{x+9}{x+2}  

 x+9x+9   x2, x3x\ne-2,\ x\ne3  

 x3x2\frac{x-3}{x-2}   x2, x3x\ne2,\ x\ne-3  

 x+9x+2\frac{x+9}{x+2}   x2x\ne2  

 x3x-3   x3x\ne-3  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify:
 x+9x281\frac{x+9}{x^2-81}  


 x9x+9\frac{x-9}{x+9}   x±9x\ne\pm9  

 1x9\frac{1}{x-9}   x±9x\ne\pm9  

 x+9x+9   x9x\ne9  

 1x+9\frac{1}{x+9}   x9x\ne-9  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Divide

 x22x8x22x15÷2x28x2x210x\frac{x^2-2x-8}{x^2-2x-15}\div\frac{2x^2-8x}{2x^2-10x}  

 2(x2)2(x+3) , x5, 4, 3\frac{2\left(x-2\right)}{2\left(x+3\right)}\ ,\ x\ne-5,\ -4,\ 3  

 2(x+2)2(x+3) , x3, 0, 4, 5\frac{2\left(x+2\right)}{2\left(x+3\right)}\ ,\ x\ne-3,\ 0,\ 4,\ 5  

 x2x+3 , x3, 4, 5\frac{x-2}{x+3}\ ,\ x\ne-3,\ 4,\ 5  

 x+2x+3 , x3, 0, 4, 5\frac{x+2}{x+3}\ ,\ x\ne-3,\ 0,\ 4,\ 5  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Divide:

 x264x+8÷x810\frac{x^2-64}{x+8}\div\frac{x-8}{10}  

 x+73x\frac{x+7}{3x}   x0x\ne0  

 1010   x±8x\ne\pm8  

 x5x-5   x±5x\ne\pm5  

 x+3x+3   x±3x\ne\pm3  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Multiply:

 (x+9)(x+8)8(x1)(x+8)(x1)\frac{\left(x+9\right)\left(x+8\right)}{8}\cdot\frac{\left(x-1\right)}{\left(x+8\right)\left(x-1\right)}  

 (x+9)8\frac{\left(x+9\right)}{8}    x8, x=1x\ne-8,\ x=1  

 (x1)8\frac{\left(x-1\right)}{8}   x8x\ne8  

 18\frac{1}{8}   no restrictions on domainno\ restrictions\ on\ domain  

   (x+9)(x+8)8\frac{\left(x+9\right)\left(x+8\right)}{8}   x8x\ne-8  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the LCD?     x3x22x35x29\frac{x-3}{x^2-2x-3}-\frac{5}{x^2-9}  

 (x3)(x+1)\left(x-3\right)\left(x+1\right)_{ }  

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

 (x3)(x+1)(x+3)\left(x-3\right)\left(x+1\right)\left(x+3\right)  

 (x+1)(x+3)\left(x+1\right)\left(x+3\right)  

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