Question

Soal :

1.)
f(x) = 6(x) - x × 2(x)
f(3) = ...

2.)
6! - 3! = ...

Peraturan :
-NO COPAS
-NO NGASAL
-NO CALKUlator
#AYO BERHENTI COPAS!!

Nt : :)​

Answer 1

☁️ Penyelesaian ☁️

Nomor 1

• f(x) = 6(x) - x × 2(x)
• f(3) = 6(3) - 3 × 2(3)
• f(3) = (6×3) - 3 × (2×3)
• f(3) = 18 - ( 3 × 6 )
• f(3) = 18 - 18
• f(3) = 0

2.)

• 6! - 3!

= ( 6×5×4×3×2×1 ) - ( 3×2×1 )

= ( 30×4×3×2×1 ) - ( 6×1 )

= ( 120×3×2×1 ) - 6

= ( 360×2×1 ) - 6

= ( 720×1 ) - 6

= 720 - 6

= 714

______________________________

Penjelasan ☁️

Utamakan perkalian dulu baru pengurangan dan seterusnya hasilnya.

______________________________

• 

Answer 2

--

Soal 1

f(x) = 6(x) - x × 2(x)

f(3) = 6(3) - 3 × 2(3)

f(3) = (6 × 3) - 3 × 2(3)

f(3) = (6 + 6 + 6) - 3 × 2(3)

f(3) = (12 + 6) - 3 × 2(3)

f(3) = 18 - 3 × 2(3)

f(3) = 18 - 3 × (2 × 3)

f(3) = 18 - 3 × (2 + 2 + 2)

f(3) = 18 - 3 × (4 + 2)

f(3) = 18 - 3 × 6

f(3) = 18 - 18

f(3) = 0

--

Soal 2

6! - 3!

(6 × 5 × 4 × 3 × 2 × 1) - (3 × 2 × 1)

(30 × 4 × 3 × 2 × 1) - (3 × 2 × 1)

(120 × 3 × 2 × 1) - (3 × 2 × 1)

(360 × 2 × 1) - (3 × 2 × 1)

(720 × 1) - (3 × 2 × 1)

720 - (3 × 2 × 1)

720 - (6 × 1)

720 - 6

714

--