2 times 2 times square root of y plus 1 is going to be plus 4 times the square root of y plus 1. And then you have 2 squared, so plus 4. So you have this whole thing times dy. We can simplify a little bit. You have a 1 plus a 4. We can add the 1 to the 4 and get a 5. And now we're ready to take the antiderivative.