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8-Mabait Rational Algebraic Expressions

Total questions: 20

Worksheet time: 2hrs 40mins

Name
Class
Date
1.

Identify the given if it is rational expression or not.

 x−2x−1\frac{x^{-2}}{x-1}  

a)

Rational expression

b)

Not rational expression

2.

Identify the given if it is rational expression or not.  

 −5x23x+1\frac{-5x^2}{3x+1}  

a)

rational expression

b)

not rational expression

3.

Identify the given if it is rational expression or not. 

 2x12+ 7\frac{2}{x^{\frac{1}{2}}+\ 7}  

a)

rational expression

b)

not rational expression

4.

Identify the given if it is rational expression or not.

 12\frac{1}{2}  

a)

rational expression

b)

not rational expression

5.

Identify the given if it is rational expression or not. 

 n8+n\frac{n}{8+\sqrt{n}}  

a)

rational expression

b)

not rational expression

6.

An expression of the form  nd\frac{n}{d}  where n and d are polynomials and d  0. 

a)

Rational Algebraic expression

b)

Polynomials

c)

Binomials

d)

Monomials

7.

A rational expression is said to be in lowest terms when its numerator and denominator have no common factors other than _____.

a)

1

b)

2

c)

3

d)

4

8.

What is the greatest common factor of each set of monomials 3x3, 6x , 9x2

a)

x3

b)

18x3

c)

3x2

d)

9x

9.

 Simplify   x2+4x + 4x+2Simplify\ \ \ \frac{x^2+4x\ +\ 4}{x+2} 

a)

(x-1)(x-1)

b)

x+2

c)

1

d)

4(x+2)

10.

 What is the LCD of12x3and  3x2x4What\ is\ the\ LCD\ of\frac{1}{2x^3}and\ \ \frac{3x}{2x^4}  

 

a)

 2x32x^3  

b)

 2x42x^4   

c)

 4x34x^3  

d)

 4x44x^4  

11.

 What is the sum of 2xx+3and 8xx+3?What\ is\ the\ sum\ of\ \frac{2x}{x+3}and\ \frac{8x}{x+3}?  

a)

 10xx+3\frac{10x}{x+3}  

b)

10

c)

 1x+3\frac{1}{x+3}  

d)

 xx+3\frac{x}{x+3}  

12.

 Add 23a to 12b.Add\ \frac{2}{3a}\ to\ \frac{1}{2b}.  

a)

 4b+3a6ab\frac{4b+3a}{6ab}  

b)

 4b−3a6ab\frac{4b-3a}{6ab}  

c)

6ab

d)

-6ab

13.

 Subtracta+b4 to a−b3.Subtract\frac{a+b}{4}\ to\ \frac{a-b}{3}.  

a)

 a−7b12\frac{a-7b}{12}  

b)

 −a−7b12\frac{-a-7b}{12}  

c)

 a+7b12\frac{a+7b}{12}  

d)

 −a+7b12\frac{-a+7b}{12}  

14.

 What is 2xx−2yless than 2y2y−x?What\ is\ \frac{2x}{x-2y}less\ than\ \frac{2y}{2y-x}?  

a)

1

b)

 2(x+2)x−2y\frac{2\left(x+2\right)}{x-2y}  

c)

-1

d)

 2(x−2)x−2y\frac{2\left(x-2\right)}{x-2y}  

15.

What is the product of

 1zand 2z\frac{1}{z}and\ \frac{2}{z}  

a)

 2z2\frac{2}{z^2}  

b)

 −2z2-\frac{2}{z^2}  

c)

 3z\frac{3}{z}  

d)

z

16.

Multiply

 r+sr2−s2and r2−2rs+s2r2−rs\frac{r+s}{r^2-s^2}and\ \frac{r^2-2rs+s^2}{r^2-rs}  

a)

r-s

b)

 1r\frac{1}{r}  

c)

 −1r-\frac{1}{r}  

d)

r+s

17.

 Dividev2−93v2+12by v+3v2+4Divide\frac{v^2-9}{3v^2+12}by\ \frac{v+3}{v^2+4}  

a)

 v−33\frac{v-3}{3}  

b)

 v+33\frac{v+3}{3}  

c)

(v+3)(v-3)

d)

3

18.

 h2k4÷7h\frac{h^2}{k^4}\div7h  

a)

 −h7k4-\frac{h}{7k^4}  

b)

h

c)

 h7k4\frac{h}{7k^4}  

d)

7k

19.

 Simplify v2−93v2+9vSimplify\ \frac{v^2-9}{3v^2+9v}  

a)

 v+33v\frac{v+3}{3v}  

b)

 v−33v\frac{v-3}{3v}  

c)

v-3

d)

3v

20.

 What must be added to 1xto produce 13?What\ must\ be\ added\ to\ \frac{1}{x}to\ produce\ \frac{1}{3}?  

a)

 x+33x\frac{x+3}{3x}   + 2+\ 2  

b)

 x+33x\frac{x+3}{3x}  

c)

 x−33x−2\frac{x-3}{3x}-2  

d)

 x−33x\frac{x-3}{3x}