If the quadratic equation (λ+2)x2−3λx+4λ=0(\lambda+2) x^{2}-3 \lambda x+4 \lambda=0(λ+2)x2−3λx+4λ=0, λ≠−2\lambda \neq -2λ=−2, has two positive roots, then the number of possible integral values of λ is :
1
2
3
4