Can somebody express this in terms of q,E,I,L,P.

d^2v / dx^2 = -(((P/L)*(l-x)^2)/2) / (E*I)

To express the given equation in terms of q, E, I, L, P, we need to substitute the given variables accordingly.

First, let's define the variables:

q = d^2v / dx^2
E = Young's modulus (a measure of a material's stiffness)
I = moment of inertia (a measure of an object's resistance to bending)
L = length of the object
P = applied load

Now, let's rewrite the given equation with these variables:

q = -(((P/L)*(L-x)^2)/2) / (E*I)

Please note that 'l' has been replaced with 'L' to maintain consistency in the notation.

Therefore, the given equation can be expressed in terms of q, E, I, L, and P as shown above.