Odpowiedzi

2010-04-10T20:42:23+02:00
2a + 2b = 22
a2 + b2 = 65 (2 po niewiadomej to druga potęga)

a = 11 - b
(11 - b)2 + b2 = 65

a = 11 - b
121- 22b + b2 + b2 = 65

a = 11 - b
2b2 - 22b = -56

a = 11 - b
b = 4

a = 7
b = 4

P = a*b = 7*4 = 28
1 1 1