372 alGEbra De mystif ieD
or ()(0)
3
()^2 (
−− ++=−
−−=
=−− ±−−
13 411
410
444
2
2
xx
xx
x ()^33141612
6
428
6
447
6
427
6
2
)( )
2(3)
()
2
− = ±−−
= ± = ±⋅= ± = ( ±^7727
3
)
6
= ±
- 910100
114
xx^2 xx
x
−= −− =
=−− ±−−
(Equivalentto9 )
()
2
()^2 ((9)( )
2(9)
()
18
− = ±−−
= ± = ± = +
10 11360
1 361
18
119
18
1199
18
119
18
20
18
18
18
10
9
,,− = − =−, 1
- 10 50
554 0525
xx^2
x
−=
=−− ±−−(() )(10)()= ±−
2(10)
(^200)
20
= ±
= ± ==
525
20
55
20
10
20
0
20
1
2
,, 0
- 01 01110
10001 0111
11
2
2
..
..
xx
xx
x
−−=
−−=
−
()100(0)
10 2 xx
x
−=
=−− ±− −−= ±
100 0
(( 11 11 )( 4 10)() 100 11 121
2(10)
)^2 −−−
= ±
(
400
11 4121
20
0)
20
- 1
3
1
6
1
8
0
24 1
3
1
6
1
8
43
2
2
xx
xx
xx
+−=
+−
=
+−=
24(0)
8 2 00
4448 3
28
41696
16
4 112
16
2
x=−± −−=−± −− =−±
=
()()
()
()
−−± ⋅^4167 =−± = −± =−±
16
447
16
417
16
17
4
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