Question

If m ­ n = 2 , mn = 15 , (m , n > 0) then the value of (m2-n2)(m3-n3)

A) 1856 B) 1658 C) 1586 D) 1568

Answer 1

Step-by-step explanation:

● Solution :

( m - n ) = 2

( m x n ) = 15

By solving this we get m = 5 and n = 3

Now,solving this......

= ( m2- n2 )x( m3 - n3 )

= 2( m-n ) x 3( m-n )

= 6 ( m- n )

= 6 (2)

= 12

So ANSWER = 12