( 1 + 9 ) x ( 500 x 105 )
= 10 x ( 500 x 105 )
= 10 x 500 x 105
= 5000 x ( 100 + 5 )
= 5000 x 100 + 5000 x 5
= 500000 + 25000
= 525000
( 1 + 9 ) x ( 500 x 105 ) = 10 x ( 500 x 105 )
= 10 x 500 x 105
= 5000 x ( 100 + 5 )
= 5000 x 100 + 5000 x 5
= 500000 + 25000
= 525000
( 1 + 9 ) x ( 500 x 105 )
= 10 x 52500
= 525000
k mình nhé