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sumSquareDifference.js
The sum of the squares of the first ten natural numbers is 12 + 22 + 32 + ... + 10 2 = 385.
The square of the sum of the first ten natural numbers is (1 + 2 + 3 + ... + 10)2 = 552 = 3025.
Hence the difference between the square of the sum and the sum of the squares of the first ten natural numbers is 3025 − 385 = 2640.
Write the sumSquareDifference() function that takes argument n and returns the difference between the square of the sum and the sum of the squares of first n natural numbers.
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