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Multiplying and Dividing Rational Expressions

Authored by Renee Perry

Mathematics

11th Grade

CCSS covered

Used 110+ times

Multiplying and Dividing Rational Expressions
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 b2+2b−63b+9÷b2+2b−63b2−13b+42\frac{b^2+2b-63}{b+9}\div\frac{b^2+2b-63}{b^2-13b+42}  


Simplify and state the restrictions on the domain.

 (b−6)(b−7)b+9;   b≠−9, 7, 6\frac{\left(b-6\right)\left(b-7\right)}{b+9};\ \ \ b\ne-9,\ 7,\ 6  

 b+2b−7     x≠7\frac{b+2}{b-7}\ \ \ \ \ x\ne7  

 b+73(b+6)          x≠−6\frac{b+7}{3\left(b+6\right)}\ \ \ \ \ \ \ \ \ \ x\ne-6  

 14b+2      x≠−2\frac{14}{b+2}\ \ \ \ \ \ x\ne-2  

Tags

CCSS.HSA.APR.D.6

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify and state the restrictions on the domain

 10x−60x2−36÷4x−20x+6\frac{10x-60}{x^2-36}\div\frac{4x-20}{x+6}  

 2x7(x+8)        x≠−8\frac{2x}{7\left(x+8\right)}\ \ \ \ \ \ \ \ x\ne-8  

 2x       x≠0\frac{2}{x}\ \ \ \ \ \ \ x\ne0  

 52(x−5)           x≠6, −6, 5\frac{5}{2\left(x-5\right)}\ \ \ \ \ \ \ \ \ \ \ x\ne6,\ -6,\ 5  

 x−214       none\frac{x-2}{14}\ \ \ \ \ \ \ none  

Tags

CCSS.HSA.APR.D.6

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify and state the restrictions on the domain.

 n2+6n+5n2+13n+36 ⋅ 3n+273n+15\frac{n^2+6n+5}{n^2+13n+36}\ \cdot\ \frac{3n+27}{3n+15}  

 n+1n+4         n≠−9, −4, −5\frac{n+1}{n+4}\ \ \ \ \ \ \ \ \ n\ne-9,\ -4,\ -5  

 90n3n+5           n≠−5\frac{90n^3}{n+5}\ \ \ \ \ \ \ \ \ \ \ n\ne-5  

 49n2n−3       n≠3\frac{49n^2}{n-3}\ \ \ \ \ \ \ n\ne3  

 3    n≠03\ \ \ \ n\ne0  

Tags

CCSS.HSA.APR.D.6

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 7a2−35a8a3−40a2 ⋅ 8a3+40a2a+5\frac{7a^2-35a}{8a^3-40a^2}\ \cdot\ \frac{8a^3+40a^2}{a+5}  

Simplify and state the restrictions on the domain.

 a+76(a−6)       a≠6\frac{a+7}{6\left(a-6\right)}\ \ \ \ \ \ \ a\ne6  

 5      none5\ \ \ \ \ \ none  

 7a      a≠0, 5, −57a\ \ \ \ \ \ a\ne0,\ 5,\ -5  

 a+7a−4         a≠4\frac{a+7}{a-4}\ \ \ \ \ \ \ \ \ a\ne4  

Tags

CCSS.HSA.APR.D.7

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 5x−305 ⋅ x2+2x−48x2−12x+36\frac{5x-30}{5}\ \cdot\ \frac{x^2+2x-48}{x^2-12x+36}  

Simplify and state the restrictions on the domain.


 x−16x2       x≠0\frac{x-1}{6x^2}\ \ \ \ \ \ \ x\ne0  

 x+8           x≠6x+8\ \ \ \ \ \ \ \ \ \ \ x\ne6  

 14x                  none14x\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ none  

 (x−7)(x−4)x−8          x≠8\frac{\left(x-7\right)\left(x-4\right)}{x-8}\ \ \ \ \ \ \ \ \ \ x\ne8  

Tags

CCSS.HSA.APR.D.7

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 x−2x2−12x+20 ÷ x2+3x−7010x−100\frac{x-2}{x^2-12x+20}\ \div\ \frac{x^2+3x-70}{10x-100}  

Simplify and state the restrictions on the domain.

 98       none\frac{9}{8}\ \ \ \ \ \ \ none  

 x−66x2         x≠0\frac{x-6}{6x^2}\ \ \ \ \ \ \ \ \ x\ne0  

 10(x−8)x−9       x≠9\frac{10\left(x-8\right)}{x-9}\ \ \ \ \ \ \ x\ne9  

 10(x−7)(x+10)          x≠10, 2, 7, −10\frac{10}{\left(x-7\right)\left(x+10\right)}\ \ \ \ \ \ \ \ \ \ x\ne10,\ 2,\ 7,\ -10  

Tags

CCSS.HSA.APR.D.6

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 p2+7p−8p2−p−42 ÷ p−4p2−11+28\frac{p^2+7p-8}{p^2-p-42}\ \div\ \frac{p-4}{p^2-11+28}  

Simplify and state the restrictions on the domain.


 (p−1)(p+8)p+6            p≠7, −6, 4\frac{\left(p-1\right)\left(p+8\right)}{p+6}\ \ \ \ \ \ \ \ \ \ \ \ p\ne7,\ -6,\ 4  

 p−75       none\frac{p-7}{5}\ \ \ \ \ \ \ none  

 2(p−10)p−3          p≠3\frac{2\left(p-10\right)}{p-3}\ \ \ \ \ \ \ \ \ \ p\ne3  

 5(p−4)7p            p≠0\frac{5\left(p-4\right)}{7p}\ \ \ \ \ \ \ \ \ \ \ \ p\ne0  

Tags

CCSS.HSA.APR.D.6

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