# Finding distance of forces for maximum bending moment

I'm having a hard time looking for the distance ($$x$$) on which the forces must be located for a maximum bending moment. The reaction forces in $$A$$ and $$B$$ are dependant of the value of $$x$$, and so changes both the shear stress and the bending moment and I don't know what to do.

P, d and L are known constants.

• Please can you also add any workings or attempts that you have made. Jan 22, 2020 at 19:14