22
find the roots of the quadratic equation 6x2 – 11x – 35 = 0
- A5/3, -7/2
- B-5/3, 7/2
- C-3/5, 2/7
- D3/5, -2/7
Answer not set
Discussion 1
Log in or create a free account to reply and vote.
0
CCommunity
6x2 – 11x – 35 = 0
⇒ 6x2 – 21x + 10x – 35 =0
⇒ 3x(2x – 7) + 5(2x – 7) = 0
⇒ (2x – 7)(3x + 5) = 0
⇒ x = 7/2 or -5/3
∴ Roots are -5/3, 7/2
⇒ 6x2 – 21x + 10x – 35 =0
⇒ 3x(2x – 7) + 5(2x – 7) = 0
⇒ (2x – 7)(3x + 5) = 0
⇒ x = 7/2 or -5/3
∴ Roots are -5/3, 7/2