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In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.I. x2 + 13x + 42 = 0II. y2 – 2y - 63 = 01. x > y2. x < y3. x ≥ y4. x ≤ y5. x = y or the relationship between x and y cannot be established. |
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Answer» Correct Answer - Option 5 : x = y or the relationship between x and y cannot be established. I. x2 + 13x + 42 = 0 ⇒ x2 + 7x + 6x + 42 = 0 ⇒ (x + 6)(x + 7) = 0 ⇒ x = -6, -7 II. y2 – 2y - 63 = 0 ⇒ y2 – 9y + 7y - 63 = 0 ⇒ (y – 9)(y + 7) = 0 ⇒ y = 9, -7
∴ x = y or the relationship between x and y cannot be established. |
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