algsys and real solutions



Hello

Solving the above system with algsys, i obtain only complex solutions. How can 
i obtain the real solutions of this system ?

eq1: alpha * beta * teta / ( (alpha-1)*(beta+1) ) - 1.5
eq2: alpha * beta * teta^2 / ( (alpha-2)*(beta+2) ) - 3
eq3: alpha * beta * teta^3 / ( (alpha-3)*(beta+3) ) - 4.5

algsys([eq1,eq2,eq3],[alpha,beta,teta]) returns no real solutions.

Best regards