Minus 2 square roots of x, and then you have plus 1. Then all of that times dx. This is going to be equal to, let's put our pi out there, the antiderivative of this business. The antiderivative of x is x squared over 2. The antiderivative, so minus 2 times the antiderivative of square root of x. Square root of x is just x to the 1 half power, so we increment the power by 1. It's going to be x to the 3 half power times 2 thirds.