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17. For the quadratic equation a * x ^ 2 + bx + c = 0, a, 1 and c are rational numbers and D = b ^ 2 - 4ac is a non-zero perfect square. The roots of the equation are

Answer» 17. For the quadratic equation a * x ^ 2 + bx + c = 0, a, 1 and c are rational numbers and D = b ^ 2 - 4ac is a non-zero perfect square. The roots of the equation are


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