bantu aku ngerjain no.10 dong ka,pliss tolong yaa

jawab

fungsi

fog(x) = x² + 3x + 4
f{g(x)} = x² + 3x + 4
f(4x-5) = x²+ 3x + 4

f(3) = ...
4x - 5 = 3
4x= 8
x= 2

f(3)  = 2²+ 3(2) + 4
f(3)= 14