The value of 27a3 – 2√(2b3) is equal to:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e (3a - √2b) (9a2 + 2b2 + 3√(2 ab)).
| Understanding/Application |
|
27a3 – 2√2b3 x = 3a, and y = (√2b) x3 - y3 = (x - y) (x2 + xy + y2) |
| (3a)3 - (√2b)3 = (3a - √2b) (9a2 + 2b2 + 3√(2ab)) |