I'm struggling to find the meaning of your post. Are you telling some space alien named that you are so confused? Are you confused about the meaning of ? Is there some operation that you are supposed to perform on or with that confuses you? I am certainly confused, and until you clear the confusion on my part, I cannot help you. Be specific and tell us what you want because we are not clairvoyant.
You can put this solution on YOUR website! Don't be confused. Break it down into things you already know. something cubed means multiplied by itself 3 times. So Now multiply the first two terms collect terms now multiply again again. collect terms
http://www.wolframalpha.com/input/?i=%28x-3%29^3