Now we could write plus 5 times some constant but this is just an arbitrary constant. So this is still just an arbitrary constant. So maybe we could have written this, if you wanted to show this as different constants you could say this is c1 c1 c1. You multiply 5 times c1 you get another constant. We could just call that c. Which is equal to 5 times c1. But there you have it. Negative 5 x to the negative 1 plus c. And once again all of these try to evaluate the derivative and you will see that you get this business right over there.