InterviewSolution
Saved Bookmarks
| 1. |
Factorise:3x2 − x − 4 |
|
Answer» 3x2 − x − 4 We can find two numbers such that pq = 3 × (− 4) = −12 and p + q = −1. 3x2 − x − 4 = 3x2 − 4x + 3x − 4 = x (3x − 4) + 1 (3x − 4) = (3x − 4) (x + 1) |
|