I'll just write that, three to the third over three. And then from that, we are going to subtract this capital F of x, the antiderivative, evaluated at the lower bound. So that is going to be seven times negative one to the third, all of that over three. And so this first expression, let's see, this is going to be seven times three to the third over three this is 27 over three, this is going to be the same thing as seven times nine. So this is going to be 63. And this over here, negative one to the third power is negative one, but then we're subtracting a negative, so this is just going to be adding. And so this is just going to be plus seven over three.