LCD for Rational Expressions

LCD for Rational Expressions

9th - 12th Grade

10 Qs

quiz-placeholder

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LCD for Rational Expressions

LCD for Rational Expressions

Assessment

Quiz

Mathematics

9th - 12th Grade

Medium

CCSS
HSA.APR.D.7

Standards-aligned

Created by

Nicole Yumori

Used 260+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the LCD?           7(x+1)+2x(x1)\frac{7}{\left(x+1\right)}+\frac{2x}{\left(x-1\right)} 

(x-1)

(x-2)(x+2)

(x+1)(x-1)

(x+1)

Tags

CCSS.HSA.APR.D.7

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the LCD?  x2(x+3)+(x3)2x\frac{x^2}{\left(x+3\right)}+\frac{\left(x-3\right)}{2x}  

 (x+3)\left(x+3\right)  

 x2(x+3)x^2\left(x+3\right)  

 2x(x+3)2x\left(x+3\right)  

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

Tags

CCSS.HSA.APR.D.7

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the LCD?           (x2+1)3(x1)+3(2x7)\frac{\left(x^2+1\right)}{3\left(x-1\right)}+\frac{3}{\left(2x-7\right)}  

 (x1)(2x7)\left(x-1\right)\left(2x-7\right)  (x-1)(2x-7)

 3(2x7)3\left(2x-7\right)  3(2x-7)

 3(x2+1)3\left(x^2+1\right)  

 3(x1)(2x7)3\left(x-1\right)\left(2x-7\right)  

Tags

CCSS.HSA.APR.D.7

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the LCD?            (x2+4x+4)x242(x+2)\frac{\left(x^2+4x+4\right)}{x^2-4}-\frac{2}{\left(x+2\right)}  

 (x+2)(x2)\left(x+2\right)\left(x-2\right)  

 (x+2)\left(x+2\right)  

 (x2)\left(x-2\right)  

 (x24)(x+2)\left(x^2-4\right)\left(x+2\right)  

Tags

CCSS.HSA.APR.D.7

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the LCD?  xx291x+3+2xx3\frac{x}{x^2-9}-\frac{1}{x+3}+\frac{2x}{x-3}  

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

 (x+3)(x29)(x3)\left(x+3\right)\left(x^2-9\right)\left(x-3\right)  

 (x3)(x29)\left(x-3\right)\left(x^2-9\right)  

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

Tags

CCSS.HSA.APR.D.7

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the LCD?  3(x+4)3x2+(x4)(x+4)-\frac{3\left(x+4\right)}{3x^2}+\frac{\left(x-4\right)}{\left(x+4\right)}  

 (x+4)(x4)\left(x+4\right)\left(x-4\right)  

 3(x4)3\left(x-4\right)  

 3x23x^2  

 3x2(x+4)3x^2\left(x+4\right)  

Tags

CCSS.HSA.APR.D.7

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the LCD?  (2x1)x23x5x24x+3\frac{\left(2x-1\right)}{x^2-3x}-\frac{5}{x^2-4x+3}  

 (x3)(x1)\left(x-3\right)\left(x-1\right)  

 x(x3)(x1)x\left(x-3\right)\left(x-1\right)  

 (2x1)(x3)\left(2x-1\right)\left(x-3\right)  

 x(2x1)(x1)x\left(2x-1\right)\left(x-1\right)  

Tags

CCSS.HSA.APR.D.7

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