Question

class 10th exercise 3.2 question number 4
​

Answer 1

Answer:

Bangladesh book class 10 question no 4 exercise 3৳.2

Step-by-step explanation:

1. a-b=3
2. a©-b©=513
3. ab=?

a©-b©=(a-b)©+3ab(a-b)=513

=(3)^3+3ab(3)= 513

=27+9ab=513

=9ab=513-27

=9ab=486

=>ab=486/9

=>ab=54

©=cube=3