2 ^ x - 2 ^ y = 24 x + y = 8-------------------y = 8 - x 2 ^ x - 2 ^ ( 8 - x ) = 24 2 ^ x = a ; 2 ^ ( - x ) = 1 / a a - 2 ^ 8 * ( 1 / a ) = 24 a - ( 256 / a ) = 24 a ≠ 0 a² - 256 = 24a a² - 24a - 256 = 0 D = 576 + 1024 = 1600 = 40²a1 = ( 24 + 40 ) : 2 = 64 : 2 = 32a2 = ( 24 - 40 ) : 2 = - 8 2 ^ x = 32 2 ^ x = 2 ^ 5x = 5 2 ^ x = - 8 2 ^ x = 2 ^ - 3 x = - 3 y = 8 - x y1 = 8 - 5 = 3 y2 = 8 + 3 = 11 Ответ ( 5 ; 3 ) ; ( - 3 ; 11 )