Question

5. Găseşte perechile de numere (factorii „a" şi „b"); axb = 14 ax b = 18 ax b = 16 axb = 12​

Answer 1

Răspuns:

axb = 14   2 x 7 = 14, 7 x 2= 14,   1x 14= 14   , 14 x 1= 14

(a, b)= { (2, 7); (7, 2); ( 1, 14) ; ( 14, 1)}   a= { 1, 2, 7, 14}  b= { 14,7, 2, 1}

ax b = 18   2x9= 18, 3 x 6= 18    1x 18= 18

(a, b)={ (1, 18) ; ( 2,9) ; ( 3, 6) }

ax b = 16    2 x8= 16,  4 x 4= 16   1x 16= 16

(a, b) ={ (2, 8) ; (4, 4); ( 1, 16) }

axb = 12​    2 x6= 12     3 x4= 12   1x 12= 12

(a, b) = { (2, 6); ( 3, 4) ; (1, 12)}