Given f(x) = (x)/(x+3) and h(x)=x^2+5.Find (f º h)(-2)

I have no idea how to do this tbh, but I need someone to explain to how to arrive at this answer step by step, as I would like to understand how to do this.Thanks so much guys

Question

Given f(x) = (x)/(x+3) and h(x)=x^2+5.Find (f º h)(-2)

I have no idea how to do this tbh, but  I need someone to explain to how to arrive at this answer step by step, as I would like to understand how to do this.Thanks so much guys

anonymous · Answer

plug h into f, so f(h(x))=x^2+5/(x^2+5+3)---> x^2+5/x^2+8

anonymous · Answer

then subsititute -2 into the equation i gave you

anonymous · Answer

9/12---> 3/4

anonymous · Answer

thanks! @sujuexob2st

anonymous · Answer

@sujuexob2st btw, do u also happen to know how to find f(f(3))? wow,i really have forgotten everything i learned in pre cal lol