I suppose that delta(t) is the Dirac impulse.
Then the impulse response is
h(t)=3*exp(-2*t)-2*exp(-3*t)
and the transfer function H(s) is its Laplace transform, thus
H(s)=3/(s+2)-2/(s+3)=(s+5)/(s^2+5*s+6).
Frequency response can be obtained after the substitution
s=jw.