Question

Quizz

1.5! - 7!
2.3! +2!​

Answer 1

Verified answer

1.5×4×3×2×1 - 7×6×5×4×3×2×1

120 - 5.040

-4.920

2.3×2×1 + 2×1

6 + 2

8

Answer 2

1. 5! – 7! = –4920
2. 3! + 2!​ = 8

 

Penjelasan dengan langkah-langkah

Faktorial

1. 5! – 7! = 5! – (5! · 6 · 7)
   = 5! – (5! · 42)
   = 5! · (1 – 42)
   = 5! · (–41)
   = (5 · 4 · 3 · 2) · (–41)
   = 120 · (–41)
   = –4800 – 120
   = –4920
    
2. 3! + 2!​ = (3 · 2) + 2
   = 6 + 2
   = 8