So let me put this aside right over here. So with that in mind, can we multiply and divide by something that will have a seven showing up? Well, we can multiply and divide by seven. So imagine doing this. Let's rewrite our original integral. The original, so let me draw a little arrow here just to go around that aside. We could write our original integral as being equal to the integral of 1 7th times seven times the square root of seven x plus nine dx.