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If sum(n=1)^nalphan=a n^2+b n ,w h e r e...

If `sum_(n=1)^nalpha_n=a n^2+b n ,w h e r ea ,b` are constants and `alpha_1,alpha_2,alpha_3 in {1,2,3,......,9}a n d25alpha_1,37alpha_2,49alpha_3` be three digit number, then prove that `|alpha_1alpha_2alpha_3 5 7 9 25alpha_1 37alpha_2 49alpha_3|=0`

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