Роздiл 3. Одночлени i многочлени » 589 (4-5)

4) 5n6 – 6n5 = 0; n5(5n – 6) = 0; n5 = 0; n = 0; 5n – 6 = 0; 5n = 6; n = 1,2. 5) –t3 – 16t2 – 64t = 0; t3 + 16t2 + 64t = 0; t(t2 + 16t + 64) = 0; t(t + 8)2 = 0; t = 0; t + 8 = 0; t = –8.