So that's just, I can just write that as eight x. And then the derivative with respect to x of seven, well, derivative with respect to x of a constant is just gonna be zero. So that's u prime of x. So then I'm just gonna multiply by u prime of x, which is three x squared plus, three x squared plus eight x. And so, well, I can clean this up a little bit. So this would be equal to, this would be equal to, actually, let me just rewrite that exponent there. So this 1 4th minus one, I can rewrite it, 1 4th minus one is negative 3 4ths.