Saved Bookmarks
| 1. |
Find the value of a^3 – 27b^3 , if a – 3b = -6 and ab = -10. |
|
Answer» (a-b)^3=a^3-b^3-3ab(a-b) (a-b)^3=a^3-(3B)^3-3ab(a-3b) (-6)=a^3-(3b)^3-3(-10)(-6) = -36 |
|