f(x)=e^x+∫[0,x]e^(x^2-t^2)f(t)dt=e^x+x²∫[0,x]f(t)dt-∫[0,x]t²f(t)dtf'(x)=e^x+2x∫[0,x]f(t)dt+x²f(x)-x²f(x)f'(x)=e^x+2x∫[0,x]f(t)dtf''(x)=e^x+2∫[0,x]f(t)dt+2xf(x)f'''(x)=e^x+2f(x)+2f(x)+2xf'(x)f'''(x)=e^x+4f(x)+2xf'(x)