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25+15= 40
25*15= 375
a= 40 - b
a.b = 375
(40 - b)b = 375
40b - b^2 = 375
b^2 - 40b +375 = 0
b ............... -25
b ............... -15
-25b - 15b = -40b
(b-25)(b-15) = 0
b -25 =0 .......... b - 15 = 0
b = 25 ......... b = 15
los numeros son:
25 y 15
axllxa