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.