Word Count : 185

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Let the required quadratic polynomial be ( y = ax^2 + bx + c ). For the data points ((-2,15.7), (-1,6.7), (0,2.7), (1,3.7), (2,9.7)), compute the needed sums: [ \sum ____ ______ ________ _________ ________ _______ ______.
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____ __________ _________ _______ ________ _____ ______ ________ _______ ________.
______ ____ _______ ________ ____ _____.
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