Which are all the answers like is there more than one. picture below, i think its 1 2 4 5

I'll give you the ones that work. 
C + D = 5 + 4 = 9
A*B = 2*sqrt(3) * sqrt(3) = 1 * 3 = 3
C*D = 5*4 = 20 Take the square roots and multiply.
A*A = sqrt(3)*sqrt(3) = 3

Gotta be d the music of previous eras