Algebra Demystified 2nd Ed

(Marvins-Underground-K-12) #1

174 algebra De mystif ieD


4.^1
62430


5
2260

1
615

5
xx^22 +− xx xx 25 xx 6

+
−−

=
−+

+
()()()+−( ))

()() ()()

()
(

= ^1
615

6
6

5
256

31
xx 3

x
xxx

x
−+ x

⋅ −

+
+−

⋅ −
− 11
1653 1
156
615

)
()()()
)( )( )
(


6(


xx
xxx
xx

−+ −
−+−
−+ −−
−+−
−+ −
−+−

1
6156
61515
6156

)
()()()

()()(

xxx
xx
xxx


))

()()()

= ^1621
6156

x
xxx


−+−

5.^24231221308


2
4

1
2

xx^22 xx^2 x

xx


+


++


=  +
()(xxx xx

xx

x

−+


++


⋅ +

44

3
241

4

24

)( )( )( )

()

= ^2 ( ))( )
()()()()

()
()

x
xx xx

xx
xx

+
++

+
−+

⋅ +
+

1
241

1
244

1
1

()()

()
()

(


++

⋅ −

=

3
241

4
4

22

xx

xx
xx

))( )( )()()
()()()

xxxx xx
xx xx

++++−−
−++

41 13 4
2441

= ++++−+
−++

454312
2441

()^222
()()()

xx xxxx
xx xx

= ^4
xx^2 xxxx
xx xx

++++−+
−+

20 16 312
244

22
()()( ++

= ++
−++

1

23316
2441

2

)

()()()

xx
xx xx
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