4. Solve the following algebraic system of equation if ,  are both positive real numbers!
 −  = 
 ∙  = 
Checking your solution, which is the correct answer from the followings:
A.) there is no solution for this problem
B.) Results are:  =  and  = 
C.) Results are:  =
5
2
and  =
5
2
D.) Results are:  =  and  = 