ajutoooooooor (a+b)^4<=8(a^4+b^4)
Răspunsuri la întrebare
Răspuns de
0
(a + b)⁴ = 8(a⁴ + b⁴)
(a + b)⁴ = 8a⁴ + 8b⁴
a⁴ + 4a³b + 6a²b² + 4ab³ + b⁴ = 8a⁴ + 8b⁴
6a²b² + a⁴ + 4ba³ + b⁴ + 4ab³ = 8a⁴ + 8b⁴
6a²b² + a⁴ + 4ba³ + 4ab³ + 4ab³ = 8a⁴ + 7b⁴
6a²b² + a⁴ + 4ba³ + b⁴ - b⁴ + 4ab³ = 8a⁴ + 8b⁴ - b⁴
= 6a²b² + a² + 4ba³ + 4ab³ = 8a⁴ + 7b⁴.
(a + b)⁴ = 8a⁴ + 8b⁴
a⁴ + 4a³b + 6a²b² + 4ab³ + b⁴ = 8a⁴ + 8b⁴
6a²b² + a⁴ + 4ba³ + b⁴ + 4ab³ = 8a⁴ + 8b⁴
6a²b² + a⁴ + 4ba³ + 4ab³ + 4ab³ = 8a⁴ + 7b⁴
6a²b² + a⁴ + 4ba³ + b⁴ - b⁴ + 4ab³ = 8a⁴ + 8b⁴ - b⁴
= 6a²b² + a² + 4ba³ + 4ab³ = 8a⁴ + 7b⁴.
Alte întrebări interesante