(tH′′)^2 = [H′(2n + t + λ) - H]^2 − 4(tH′ − H + δ)[(H′)^2 + λH′]

where H(t) / (n^2)λ = (summation from k=1 to infinity) of [bk / (t^k)]

((where bk means b with subscript k))

I hope someone can help me..I desperately need to know how to do this!!

Thanks