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Adding and Subtracting Rational Expressions

Authored by Kevin McGill

Mathematics

9th - 12th Grade

CCSS covered

Used 610+ times

Adding and Subtracting Rational Expressions
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Subtract
 x53x+43x53x+4\frac{x-5}{3x+4}-\frac{3x-5}{3x+4}  

 2x103x+4; x43\frac{-2x-10}{3x+4};\ x\ne-\frac{4}{3}  

 2x3c+4; x43\frac{-2x}{3c+4};\ x\ne-\frac{4}{3}  

 2x; x0-2x;\ x\ne0  

 2x10; x0-2x-10;\ x\ne0  

Tags

CCSS.HSA.APR.D.7

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Add
 3x2x+2+2x4x1\frac{3x-2}{x+2}+\frac{2x}{4x-1}  

 14x27x+2(x+2)(4x1); x2, 14\frac{14x^2-7x+2}{\left(x+2\right)\left(4x-1\right)};\ x\ne-2,\ \frac{1}{4}  

 14x29x2(x+2)(4x1); x2, 1\frac{14x^2-9x-2}{\left(x+2\right)\left(4x-1\right)};\ x\ne-2,\ 1  

 12x27x+2(x+2)(4x1); x2, 14\frac{12x^2-7x+2}{\left(x+2\right)\left(4x-1\right)};\ x\ne-2,\ \frac{1}{4}  

 14x27x+2(x+2)(4x1); x14, 2\frac{14x^2-7x+2}{\left(x+2\right)\left(4x-1\right)};\ x\ne-\frac{1}{4},\ 2  

Tags

CCSS.HSA.APR.D.7

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Subtract
 x2x+32x+12x3\frac{x}{2x+3}-\frac{2x+1}{2x-3}  

 2x211x3(2x3)(2x+3); x±23\frac{-2x^2-11x-3}{\left(2x-3\right)\left(2x+3\right)};\ x\ne\pm\frac{2}{3}  

 2x211x3(2x3)(2x+3); x±32\frac{-2x^2-11x-3}{\left(2x-3\right)\left(2x+3\right)};\ x\ne\pm\frac{3}{2}  

 2x2+5x+3(2x3)(2x+3); x±32\frac{-2x^2+5x+3}{\left(2x-3\right)\left(2x+3\right)};\ x\ne\pm\frac{3}{2}  

 2x2+5x+3(2x3)(2x+3); x±23\frac{-2x^2+5x+3}{\left(2x-3\right)\left(2x+3\right)};\ x\ne\pm\frac{2}{3}  

Tags

CCSS.HSA.APR.D.7

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Subtract
 6x2+4x32x5x4\frac{6}{x^2+4x-32}-\frac{x-5}{x-4}  

 x2+3x34(x+8)(x4); x8, 4\frac{-x^2+3x-34}{\left(x+8\right)\left(x-4\right)};\ x\ne-8,\ 4  

 x2+3x34(x+8)(x4); x4, 8\frac{-x^2+3x-34}{\left(x+8\right)\left(x-4\right)};\ x\ne-4,\ 8  

 x23x+46(x+8)(x4); x8, 4\frac{-x^2-3x+46}{\left(x+8\right)\left(x-4\right)};\ x\ne-8,\ 4  

 x23x+46(x+8)(x4); x4, 8\frac{-x^2-3x+46}{\left(x+8\right)\left(x-4\right)};\ x\ne-4,\ 8  

Tags

CCSS.HSA.APR.D.7

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Subtract
 x232x+72x52x+7\frac{x^2-3}{2x+7}-\frac{2x-5}{2x+7}  

 x22x82x+7; x72\frac{x^2-2x-8}{2x+7};\ x\ne-\frac{7}{2}  

 x22x8; x0x^2-2x-8;\ x\ne0  

 x22x+2; x0x^2-2x+2;\ x\ne0  

 x22x+22x+7; x72\frac{x^2-2x+2}{2x+7};\ x\ne-\frac{7}{2}  

Tags

CCSS.HSA.APR.D.7

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify (add & divide)
 12x+23xx1x3\frac{\frac{1}{2x}+\frac{2}{3x}}{\frac{x-1}{x-3}}  

 7x216x26x; x0, 1, 3\frac{7x-21}{6x^2-6x};\ x\ne0,\ 1,\ 3  

 7x216x26x; x1, 3\frac{7x-21}{6x^2-6x};\ x\ne1,\ 3  

 7x221x6x36x2; x0, 1, 3\frac{7x^2-21x}{6x^3-6x^2};\ x\ne0,\ 1,\ 3  

 7x221x6x36x2; x1, 3\frac{7x^2-21x}{6x^3-6x^2};\ x\ne1,\ 3  

Tags

CCSS.HSA.APR.D.6

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Add
 7xx25x+x2x5\frac{7x}{x^2-5x}+\frac{x^2}{x-5}  

 x3+7xx(x5); x5\frac{x^3+7x}{x\left(x-5\right)};\ x\ne5  

 x2+7x5; x0, 5\frac{x^2+7}{x-5};\ x\ne0,\ 5  

 x45x3+7x235x(x25x)(x5); x5\frac{x^4-5x^3+7x^2-35x}{\left(x^2-5x\right)\left(x-5\right)};\ x\ne5  

 x45x3+7x235x(x25x)(x5); x0, 5\frac{x^4-5x^3+7x^2-35x}{\left(x^2-5x\right)\left(x-5\right)};\ x\ne0,\ 5  

Tags

CCSS.HSA.APR.D.7

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