Q1. SS3 Mathematics: Find the quadratic equation whose roots are 3 and β5.
- A. xΒ² β 2x β 15 = 0
- B. xΒ² + 2x β 15 = 0
- C. xΒ² β 2x + 15 = 0
- D. xΒ² + 2x + 15 = 0
Answer: B. xΒ² + 2x β 15 = 0
Sum of roots = 3 + (β5) = β2. Product of roots = 3 Γ (β5) = β15. Equation: xΒ² β (sum)x + product = 0 β xΒ² β (β2)x + (β15) = 0 β xΒ² + 2x β 15 = 0.