4! + 5! - 3!!___________sepi ya_.

4! + 5! – 3!!___________sepi ya_.

4! + 5! – 3!!

_____

( 4 × 3 × 2 × 1 ) + ( 5 × 4 × 3 × 2 × 1 ) – ( 3 × 1 )

= ( 12 × 2 × 1 ) + ( 20 × 3 × 2 × 1 ) – 3

= ( 24 × 1 ) + ( 60 × 2 × 1 ) – 3

= 24 + ( 120 × 1 ) – 3

= 24 + 120 – 3

= 144 – 3

= 141.

Gambar Jawaban

→ 4! + 5! – 3!!

→ (4 × 3 × 2 × 1) + (5 × 4 × 3 × 2 × 1) – (3 × 1)

→ 24 + 60 – 3

→ 84 – 3

→ 81

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