Решите уравнение √x-2 = x-8
√ ( x - 2 ) = x - 8 ( √ ( x - 2 ))² = ( x - 8 )² x - 2 ≥ 0 ; x ≥ 2 x - 2 = x² - 16x + 64 x² - 17x + 66 = 0 D = 289 - 264 = 25 ; √ D = 5 X1 = ( 17 + 5 ) : 2 = 11 ( ≥ 2 ) X2 = ( 17 - 5 ) : 2 = 6 ( ≥ 2 ) Ответ 11 ; 6