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Workbook

C. Find the solution set of the given inequalities below.
1. 5 x 1   3 2. x 3 6 5  

3. 2 3x 1   4 4 x 2 x 4 0  

2x 5 1 1
5. 3 x 2  7 6.  
3 3 6

EXERCISES 4

1) Calculate the following.

a. 7  11 7     3 1  b. 3 5 3( 12 10)    
10

c. 10 3 3 2 1 4    d. 13 2 18 21   5 11 

2) Simplify a b  c b  , if a<b<0<c.
a

3) If a<b, b>c and a>c then find a b  a c  c b .

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