What is that equal to? Pause this video and try to think about it. And I'll give you a little bit of a hint. Think about the second fundamental theorem of calculus. All right, now let's work on this together. So we wanna figure out what g prime, we could try to figure out what g prime of x is and then evaluate that at 27. And the best way that I can think about doing that is by taking the derivative of both sides of this equation.