Mathematics · Quadratic Equations
There are two quadratic equations given below. Equation I: X2 − (3C)X + 221 = 0 Equation II: Y2 − (D + 4)Y + 140 = 0 Note: 1. The roots of Equation I are two prime numbers whose sum is 30. 2. One of the roots of Equation II is equal to the positive difference between the roots of Equation I. Find the value of (D − C)2.
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625
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