How to calculate (50 * 2 + 49) + (49 * 2 + 48) + (48 * 2 + 47) + (47 * 2 + 46) +. + (2 * 2 + 1) + 2

How to calculate (50 * 2 + 49) + (49 * 2 + 48) + (48 * 2 + 47) + (47 * 2 + 46) +. + (2 * 2 + 1) + 2

(50 * 2 + 49) + (49 * 2 + 48) + (48 * 2 + 47) + (47 * 2 + 46) +. + (2 * 2 + 1) + 2 how to calculate = 2 * (1 + 2 +.. + 50) + (1 + 2. +. + 49) = 2 * (1 + 2 +.. + 50) + (1 + 2. +. + 49 + 50) - 50 = 3 (1 + 2 +... + 50) - 50 = 3 (5050) / 2-50 = 3 (2525) - 50 = 7575-50 = 7525