3³+ 3¹° : 3⁸ × 3 + 3 × 3⁷ : 3⁵ + 2 × 3¹° : ( 5 × 3⁵+ 3⁵ ) +9 × 3³= 405
= 3³ + 3⁽¹⁰⁻⁸⁺¹⁾ + 3⁽¹⁺⁷⁻⁵⁾ + 2 × 3¹° : 3⁵ ( 5 + 1) + 3²× 3³ =
= 3³ + 3³ + 3³ + 2 × 3⁵: 6 + 3⁽²⁺³⁾ =
= 3³ + 3³ + 3³ +3⁴ + 3⁵ =
= 3³ ( 1 + 1 + 1 + 3 + 3²) =
= 3³ × 15 = sau = 3⁴×5
= 27 × 15 =
= 405