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Dau coroana daca raspunde cn pana la 12:15 min... Pupici paaa​

Dau Coroana Daca Raspunde Cn Pana La 1215 Min Pupici Paaa class=

Răspuns :

Răspuns: E greu. Incerc sa-l fac si ti-l trimit

V. ax-ay= 105

a) a(x-y)=105 fiindcă a=-3 x-y= 105: (-3) = -35

b) a(x-y)=105 ni se dă x-y= -21 a=105: (-21) = -5

IV. a) a*b= 10 (a,b)= (1,10), (-1,-10) (2,5) (-2,-5)

b) a*b=3 (1,3) (3,1) (-1,-3), (-3,-1)

c) (a-1)(b+2)=5

5 (1,5), (5,1) (-1,-5), (-5,-1)

a-1=1 a=2 b+2=5 b=3 (2,3)

a-1=5 a=6 b+2=1 b=-1 (6,-1)

a-1= -1 a=0 b+2=-5 b=-7 (-1,-7)

a-1=2 a=3 b+2=5 b=3 (3,3)

a-1=-5 a= -4 b+2= -1 b=-3 (-4,-3)