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Sagot :

Bonsoir,

6u -v = u -5

6*3 -14 = 3 -5

18 -14 ≠ -2

donc, faux

6uv -229 = u² +v

6*3*14 -229 = 3*3 + 14

252-229 = 9+14

23 = 23

Donc, vrai

4u -2 = 52 -uv

4*3 -2 = 52 - 3*14

12-2 =52 -42

10 = 10

Donc vrai

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