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In the given question, two equations numbered l and II are given. You have to solve both the equations and mark the appropriate answer-I. 2x2 - 14x + 20 = 0II. 8y2 - 32y + 24 = 01. x > y2. x ≥ y3. x < y4. x ≤ y5. x = y or the relation cannot be determined |
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Answer» Correct Answer - Option 5 : x = y or the relation cannot be determined Given: I. 2x2 – 14x + 20 = 0 II. 8y2 – 32y + 24 = 0 Concept used: Using factorization (Middle term split) method. Calculation: 2x2 – 14x + 20 = 0 ⇒ 2x2 – 10x – 4x + 20 = 0 ⇒ 2x(x – 5) – 4(x – 5) = 0 ⇒ (x – 5)(2x – 4) = 0 ⇒ (x – 5) = 0 or (2x – 4) = 0 ⇒ x = 5 or x = 2 ⇒ x = 2, 5 8y2 – 32y + 24 = 0 ⇒ 8y2 – 24y – 8y + 24 = 0 ⇒ 8y(y – 3) – 8(y – 3) = 0 ⇒ (y – 3)(8y – 8) = 0 ⇒ (y – 3) = 0 or (8y – 8) = 0 ⇒ y = 3 or y = 1 ⇒ y = 1, 3 ∴ The relation cannot be determined. |
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