derivatives help!

[mint atlas]

Do you know how to find dL/dx?

Do you know the power rule and the chain rule?

I don't know what thing you mean. You start by taking the derivative of L(x) by using derivative rules.

Replacing the L with one is good. That gives you one of your two equations.

You need the derivative to get the other equation

[mint atlas]

L=1 when x=3, so you need to replace the x too