Chapter 6 Indices and surds334

Example 8 Combining index laws 1 and 2

a x x x ba b a b

a b

SOLUTION EXPLANATION

a x x x x x x

x xx x

b a b a b

a ba ba b

ab

1 a

b

2 c da b

c

d

3 a bc de a a a f a a ag x x x h b b b

Unde

rsta

ndin

g

Exercise 6B

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© Greenwood et al. 2011 Cambridge University Press

Number and Algebra 335

Flue

ncy

4 a b c de f g hi j k l

5 a x x b a a c t t d y ye d d f y y y g b b b h q q qi x y x y j x y x y k x y xy l xy z xym m m n e f e f o c d c d p yz yz

6

a a a b x x cqq

ddd

e bb

fdd

gaa

hyy

i m m j x x k y y l a a

m mm

n ww

oaa

p xx

q x yx y

rs ts t

sm nm n

tx yxy

7 a b b b b y y y c c c c d x x x

e t t

tf

p pp

gd d

dh x x

x

i x y xyx y

j bg

gb

k m nm n

m nmn

lp qp q

p qp q

8

a mn

mn

bxy

xy

cab

ba

d a

cac

ef f

ff x b x b

xb

g k mkm

kmk

hx yx y

x yxy

i m n mnmn m n

m nm n

Example 5

Example 6

Example 7

Example 8

ISBN 978-0-521-17865-5 Photocopying is restricted under law and this material must not be transferred to another party.

© Greenwood et al. 2011 Cambridge University Press