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SIMPLIFYING EXPRESSIONS

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Simplifying the following<br />

x y x y<br />

1. 2(5 ) 3(3 )<br />

x x<br />

2. 2(3 1) ( 2)<br />

y<br />

y<br />

3. 2 3( 1)<br />

6. Expand and simplify<br />

(2x5)(3x<br />

4)<br />

7.<br />

2 2<br />

9x<br />

y<br />

9x<br />

3y<br />

m<br />

m<br />

4. 3 2( 1)<br />

5. 3(3x 1) (6x<br />

3)<br />

8.<br />

2x3 x2<br />

<br />

5 3


9.<br />

3 2 3 <br />

2 m<br />

16.<br />

2 3<br />

<br />

x1 x<br />

1<br />

10. Express as a single<br />

fraction<br />

3<br />

2<br />

p<br />

<br />

p<br />

q<br />

17. Express as a single<br />

fraction<br />

4 <br />

3<br />

x 1 2<br />

x 1<br />

11.<br />

5 7 1<br />

<br />

y y 2<br />

18.<br />

2x<br />

6<br />

<br />

x3 3<br />

x<br />

12.<br />

2 a 2<br />

<br />

3 2a<br />

19.<br />

3 2<br />

<br />

3t1 2t1<br />

13.<br />

3 2<br />

<br />

y y 2<br />

20.<br />

b 2<br />

<br />

b5 b3<br />

14.<br />

2 3<br />

<br />

a<br />

3 a<br />

21.<br />

1 2<br />

<br />

p2 4p3<br />

15. Write as a single<br />

fraction in its<br />

simplest form<br />

3 4<br />

<br />

x x 1<br />

22.<br />

4 5 x<br />

<br />

x 2x<br />

2


Word Problems<br />

23. In a multiple choice test of 30 items, each candidate is<br />

given a bonus mark of 30. A candidate earns 3 marks for<br />

each correct answer and loses 1 mark for each incorrect or<br />

omitted answer.<br />

Assuming that a candidate gets x correct answers, show that<br />

the total number of marks received must be divisible by 4<br />

24. ……..<br />

i. Alice hat t tapes and Ben has 10 tapes more than Alice.<br />

Express, in terms of t, the number of tapes Ben has.<br />

ii. Alice gives Ben 14 of her tapes. Ben now has twice as<br />

many tapes as Alice now has<br />

Write an algebraic expression to represent the amount<br />

each person now has<br />

25. Adam, Imran, and Shakeel were playing a card game.<br />

Adam scored x points. Imran scored 3 points fewer than<br />

Adam. Shakeel scored twice as many points as Imran<br />

Together they scored 39 points<br />

i. Write down in terms of x an expression for the<br />

number of points scored by Shakeel.<br />

Write an equation which may be used to find the value of x.

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