Oblicz :
a) NWD (210,55)^{NWD(213,368)} + NWW (12,18) - 2x = 162
b)stopień pierwiastka -> NWD(42,38) pod pierwiastkiem -> NWW(4,9)
od tego : - 2x = NWD (21,1230)
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a)
210 | 2
105 | 3
35 | 5
7 | 7
1
55 | 5
11 | 11
1
NWD (210, 55) = 5
213 | 3
71 | 71
1
368 | 2
184 | 2
92 | 2
46 | 2
23 | 23
1
NWD (213, 368) = 1
12 | 2
6 | 2
3 | 3
1
18 | 2
9 | 3
3 | 3
1
NWW (12, 18) = 2*2*3*3 = 36
NWD (210,55)^{NWD(213,368)} + NWW (12,18) - 2x = 162
5^1 + 36 - 2x = 162
2x = 41 - 162 = - 121
x = - 60,5
b)
42 | 2
21 | 3
7 | 7
1
38 | 2
19 | 19
1
NWD (42, 38) = 2
4 | 2
2 | 2
1
9 | 3
3 | 3
1
NWW (4, 9) = 2*2*3*3 = 36
21 | 3
7 | 7
1
7 nie dzieli, 1230, ale 3 tak
NWD (21, 1230) = 3