F(x) = 18x + x! + 20f(3) = ..​

Penjelasan dengan langkah-langkah:

f(x) = 18x + x! + 20

f(3) = 18(3) + 3! + 20

f(3) = 54 + (3 × 2 × 1) + 20

f(3) = 54 + 6 + 20

f(3) = 60 + 20

f(3) = 80

f(x) = 18x + x! + 20

f(3) = 18(3) + 3! + 20

f(3) = ( 18 × 3 ) + ( 3 × 2 × 1 ) + 20

f(3) = 54 + ( 6 × 1 ) + 20

f(3) = 54 + 6 + 20

f(3) = 60 + 20

f(3) = 80