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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.l. x2 – 9x + 14 = 0ll. y2 + y – 42 = 01. x > y2. x < y3. x ≥ y4. x ≤ y5. x = y or relation between x and y can not be determine. |
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Answer» Correct Answer - Option 5 : x = y or relation between x and y can not be determine. Calculation: x2 – 9x + 14 = 0 ⇒ x2 - 7x - 2x + 14 = 0 ⇒ x(x - 7) - 2(x - 7) = 0 ⇒ (x - 2) (x - 7) ⇒ x = 2, 7. y2 + y – 42 = 0 ⇒ y2 + 7y - 6y - 42 = 0 ⇒ y(y + 7) - 6(y + 7) = 0 ⇒ (y - 6) (y + 7) = 0 ⇒ y = 6, -7. Comparison between x and y (via Tabulation):
∴ The relation between x and y can not be determined. |
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