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Investigating roots. Solve each of the following quadratic equationsa)x2 7x 12 = 0b)x2 5x 6 = 0 c)x2 x 20 = 0 d)2x2 5x 3 = 0 Write down the sum of the roots and the product of the roots.Roots of polynomial equations are usually denoted by Greek letters.For a quadratic
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