1.

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.I. x2 + 31x + 240 = 0II. 5y2 + 60y + 135 = 01. x > y2. x < y3. x ≥ y4. x ≤ y5. x = y or relationship between x and y cannot be established.

Answer» Correct Answer - Option 2 : x < y

Calculation

I. x2 + 31x + 240 = 0

⇒ x2 + 15x + 16x + 240 = 0

⇒ x (x + 15) + 16(x + 15) = 0

⇒ (x + 15) (x + 16) = 0

⇒ x = -15, -16

II. 5y2 + 60y + 135 = 0

⇒ 5y2 + 45y + 15y + 135 = 0

⇒ 5y (y + 9) + 15 (y + 9) = 0

⇒ (y + 9) (5y + 15) = 0

⇒ y = -9, -3

 Value of X 

 Value of Y 

 Relation 

- 15

- 9

x < y

- 15

- 3

x < y

- 16

- 9

x < y

- 16

- 3

x < y

∴ x < y



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