Question

45xn+54xn+n          vơi n=10

Answer 1

Thay n=10 vào ta có:

\(45\times10+54\times10+10=450+540+10=1000\)

k nha

Answer 2

45*n + 54*n + n

=45*n + 54*n + n*1

=n*(45+54+1)

=n*100

thay n bang 10 ta co 10*100=1000

Answer 3

n = 10 thi ta co : 

= 10 x 45 + 54 x 10 + 1 x 10

= 10 x ( 45 + 54 + 1 )

= 10 x 100 

=  1000

Answer 4

45x10+54x10+10=450+540+10

=1000

Answer 5

1000

k nha