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Operations on rational algebraic expressions

Authored by Wayground Content

Mathematics

9th - 12th Grade

Operations on rational algebraic expressions
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Multiply and Simplify: 5p9p2+6p27p+9\frac{5}{p-9}\cdot\frac{p^2+6p-27}{p+9}  

 (p+9)(p9)\frac{\left(p+9\right)}{\left(p-9\right)}  

 53\frac{5}{3}  

 5(p3)(p9)\frac{5\left(p-3\right)}{\left(p-9\right)}  

 (p+3)(p+9)\frac{\left(p+3\right)}{\left(p+9\right)}  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 7a235a8a340a2  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(a6)       a6\frac{a+7}{6\left(a-6\right)}\ \ \ \ \ \ \ a\ne6  

 5      none5\ \ \ \ \ \ none  

 7a      a0, 5, 57a\ \ \ \ \ \ a\ne0,\ 5,\ -5  

 a+7a4         a4\frac{a+7}{a-4}\ \ \ \ \ \ \ \ \ a\ne4  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 n2+4n32n29n+20n211n+305n30\frac{n^2+4n-32}{n^2-9n+20}\cdot\frac{n^2-11n+30}{5n-30}  


Multiply and state the domain restrictions.

 n+616n4; n0\frac{n+6}{16n^4};\ n\ne0  

 6n(n4)(n+6); n6, 4\frac{6n}{\left(n-4\right)\left(n+6\right)};\ n\ne-6,\ 4  

 3(n8)n+8; n8\frac{3\left(n-8\right)}{n+8};\ n\ne-8  

 n+85; n4, 5, 6\frac{n+8}{5};\ n\ne4,\ 5,\ 6  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

20) Simplify the rational expression.

 2x64x292x2+11x+125x2+20x\frac{2x-6}{4x^2-9}\cdot\frac{2x^2+11x+12}{5x^2+20x}  

 12\frac{1}{2}  

 x32x3\frac{x-3}{2x-3}  

 15x\frac{1}{5x}  

 2(x3)5x(2x3)\frac{2\left(x-3\right)}{5x\left(2x-3\right)}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Media Image

Find the product.

x - 2

1

3x + 2

x + 2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Multiply  3x6x+314x+73\frac{3x}{6x+3}\cdot\frac{14x+7}{3}  

 7x9\frac{7x}{9}  

 x3\frac{x}{3}  

 7x3\frac{7x}{3}  

 73\frac{7}{3}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x+4x2×(x2)(x+1)\frac{x+4}{x-2}\times\frac{\left(x-2\right)}{\left(x+1\right)}  

Multiply.

 x + 1x\ +\ 1  

 x+4x+1\frac{x+4}{x+1}  

 x2x\frac{x-2}{x}  

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