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RafaelXX8XX
a fost răspuns

Rezolvare la:x,y nr naturale
a.i.(x-3)•(y+2)=12

Răspuns :

MFM
12=1x12=12x1=3x4=4x3=2x6=6x2
atunci 
x-3=1⇒x=4 si y+2=12⇒y=10⇒(4,10)
x-3=2⇒x=5 si y+2=6⇒y=4⇒(5,4)
x-3=3⇒x=6 si y+2=4⇒y=2⇒(6,2)
x-3=4⇒x=7 si y+2=3⇒y=1⇒(7,1)
x-3=6⇒x=9 si y+2=2⇒y=0⇒(9,0)
x-3=12⇒x=15 si y+2=1⇒y=-1⇒(15,-1)

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