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Wheat grow well in North-Western India
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Heya e
31(1 - 4m + 5n) from 41(10n - 3m + 21)
= [41(10n - 3m + 21)] - [31(1 - 4m + 5n)] = = [40ln - 12lm + 81^2] - [31^2 - 12lm + 15ln] = 40ln - 12lm + 81^2 31^2 + 121lm - 15ln = 40ln - 15ln - 12lm + 12Im + 81^2 - 31^2
= 25ln + 51^2
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