Correct Answer: Option D

Explanation

5 + 3x - 2x² = 0, (x + 1)(5 - 2x) (expand to check)

(x + 1)(5 - 2x) = 0

when x = 1 = 0, x = -1

when 5 - 2x = 0, x = \(\frac{5}{2}\) - 1

• heat energy? Answer this

  2 Answers   ·   Physics   ·   1 year ago
• a ship sails 340km in direction 225⁰, then sails 570km in the direction 035⁰. how far is the final position... Answer this

  2 Answers   ·   Mathematics   ·   1 day ago
• Calculate the mass of iron (ii) sulphide required to react with dilute HCl to provide 112cm3 of H2S gas at... Answer this

  3 Answers   ·   5 years ago