1) (а - 2b)⁶ = a⁶+6a⁵ * (-2b)+15a⁴ * (-2b)²+20a³ (-2b)³ +15a² * (-2b)⁴ +6a * (-2b)⁵+(-2b)⁶= = a⁶ - 12a⁵b + 60a⁴b² - 160a³b³ + 240a²b⁴ - 192ab⁵ + 64b⁶
2) (1+ √2)⁵ = 1⁵ + 5*1⁴*√2 + 10*1³*(√2)²+10*1²*(√2)³+5*1*(√2)⁴+(√2)⁵ =
= 1 + 5√2 + 10*2+ 10*2√2 + 5*4+ 4√2 = 1 + 5√2 + 20 + 20√2 + 20 + 4√2 = 41+ 29√2