( 1 + 2 + 4 + 8+ ... + 512 ) x ( 101 x 102 - 101 x 101 - 50 - 51 )
= ( 1 + 2 + 4 + 8+ ... + 512 ) x ( 101 x 102 - 101 x 101 - 101 )
= ( 1 + 2 + 4 + 8+ ... + 512 ) x ( 101 - 101 )
= ( 1 + 2 + 4 + 8+ ... + 512 ) x 0
= 0
( 1 + 2 + 4 + 8+ ... + 512 ) x ( 101 x 102 - 101 x 101 - 50 - 51 )
= ( 1 + 2 + 4 + 8+ ... + 512 ) x ( 101 x 102 - 101 x 101 - 101 )
= ( 1 + 2 + 4 + 8+ ... + 512 ) x ( 101 - 101 )
= ( 1 + 2 + 4 + 8+ ... + 512 ) x 0
= 0