If f′(x)=2xf'(x) = 2xf′(x)=2x and f(0)=3f(0) = 3f(0)=3, what is f(x)f(x)f(x)?
x2+3x^2 + 3x2+3
x2x^2x2
2x+32x + 32x+3
x2+3xx^2 + 3xx2+3x