Вправи 501 - 595 » 504
Спростіть вираз: 1) 4√a + 3√a – 5√a = (4 + 5 – 5)√a = 2√a; 2) 6√b + 2√b – 8√b = (8 + 2 – 8)√b = 0; 3) 5√c + 3√d – √c + 3√d = (5 – 1)√c + (3 + 3)√d = 4√c + 6√d; 4) √5 + 7√5 – 4√5 = (1 + 7 – 4) √5 = 4√5.
Спростіть вираз: 1) 4√a + 3√a – 5√a = (4 + 5 – 5)√a = 2√a; 2) 6√b + 2√b – 8√b = (8 + 2 – 8)√b = 0; 3) 5√c + 3√d – √c + 3√d = (5 – 1)√c + (3 + 3)√d = 4√c + 6√d; 4) √5 + 7√5 – 4√5 = (1 + 7 – 4) √5 = 4√5.