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DRILL WEE A magic square is a puzzle in which the sum of the numbers in any row, column, and along the diagonal are the same. When 5, 3 and 7 are substituted in place of a, b and c respectively for the expressions in the left square, the result is the square at the right. Complete the square at the right by evaluating the given algebraic expressions at the left. U a+b+c a+b-c atc-b a-b-c a+b 2 5 -5 -2 Examine the sum of the numbers in any rows, columns 33
