Saved Bookmarks
| 1. |
For what value of k the roots of the equation x2 + 4 x+ k = 0 are real |
|
Answer» I can\'t understand x2+4x+k=0D=0b2-4ac=0(4)2-4*1*k=016-4k=0-4k=-164k=16k=16/4k=4 |
|