1). 8! – 5! = ….?
2). 34² – 12² = ….?
Pake cara!
BA = yang pangkatnya lebih rendah
Q/K
Penjelasan dengan langkah-langkah:
= 8! – 5!
= 8 × 7 × 6 × 5 × 4 × 3 × 2 – 5!
= 336 × 5 × 4 × 3 × 2 – 5!
= 6.720 × 3 × 2 – 5!
= 20.160 × 2 – 5!
= 40.320 – (5.4.3.2.1)
= 40.320 – 60 × 2
= 40.320 – 120
= 40.200 ✔
= 34² – 12²
= (34 × 34) – 12²
= 1.156 – 12²
= 1.156 – (12 × 12)
= 1.156 – 144
= 1.012 ✔
Jawaban:
1). 40.200
2). 1.012
___Penyelesaian___
1). 8! – 5!
= (8 × 7 × 6 × 5 × 4 × 3 × 2 × 1) – (5 × 4 × 3 × 2 × 1)
= 40.320 – 120
= 40.200
2). 34² – 12²
= (34 × 34) – (12 × 12)
= 1.156 – 144
= 1.012