Q. Terlampir Nt. req soal​

Penjelasan dengan langkah-langkah:

f(x) = x! × 3x

f(2) = 2! × 3(2)

f(2) = 2 × 3(2)

f(2) = 2 × 6

f(2) = 12

– – – – – – – – – – – – – – – – – – – – – – – – – – –

f(x) = x! × 3x

f(3) = 3! × 3(3)

f(3) = 6 × 3(3)

f(3) = 6 × 9

f(3) = 54

– – – – – – – – – – – – – – – – – – – – – – – – – – –

f(2) + f(3)

= 12 + 54

= 66