122 algebra De mystif ieD

DeMYSTiFieD / algebra DeMYSTiFieD / HuttenMuller / 000-0 / Chapter 5

5.^9

(^58)

6. x

(^49)

7. 
   

   5 124
   xy

   
   


8. 
   

   (^81256)
   xy

   
   

9.^1

(^48) xy^2

10.^4
27 3

5

xy

✔SOLUTIONS

1. 3662 3 2 66

3 1

3 1

3

3 3

3

xx

x

x

x

x

x

x

=⋅==

2.^3
2

3

2

2

2

32

2

48

2

5

5

5 1

5 4

5 4

5 4

5 5

5

=⋅= ⋅ =

3.^1
4

1

4

4

4

4

(^52524)
5 3
5 3
5 3
() ()^55
()
()
()
xx ()
x
x
x
− x

−
⋅ −
−
= −
−
== −
−
()x
x
4
4
5 3

4. x
   x

x

x

x

x

xx

x

4 4 1 x

4 3

4 3

(^4343)
=⋅==

5.^9
8

9

2

9

2

2

2

94

2

94

(^553532)
5 2
5 2
5
5 5
5
==⋅==

6. xxxxx

(^933)
3
3
9
3
9
(^442423)
4 2
4 2
4
4 4
4
==⋅==

7. 5 1124 5 24

5 31

5 31

5 3

5 55

5 3

xy xy^55

xy

xy

xy

xy

xy

xy

=⋅=== x

()

(^533) y
xy

8. 8 1256 12 12 12

8

8 56

8 32

8 32

8 32

8 88

32

xy xy

xy

xy

xy

xy

=⋅==^88 xy

8 8

812 32

()xy

xy

xy

=