The quadratic equation whose roots are 1 and -1/2 (a) 2x² + x – 1 = 0 (b) 2x² – x – 1 = 0 (c) 2x² + x + 1 = 0 (d) 2x² – x + 1 = 0 About the author Madelyn
(b) 2x^2 -x -1 =0 explanation: try putting the roots given in each equation and see which one satisfies it , when putting 1 in each of the above equation only (b) satisfied it , so you got your answer. Reply
Answer:
answer is option b 2×2-x-1=0
(b) 2x^2 -x -1 =0
explanation:
try putting the roots given in each equation and see which one satisfies it , when putting 1 in each of the above equation only (b) satisfied it , so you got your answer.