Question

3. If the equation x* + 4x + k = 0 has real and distinct roots then
(a)k<4 (b) k> 4 (c) k < 4 (d)k 24​

Answer 1

Answer:

d) k = 4

Step-by-step explanation:

as equal roots so

b² - 4ac = o

4² - 4 × 1 × k = 0

16 - 4k =0

16 = 4k

k =4