Question

tinh nhanh neu co the

512 x ( 2 - 128 ) - 128 x ( - 512 )

cac ban ghi loi giai chi tiet nhe 

Neu thay dung minh se tick

Answer 1

512.(2 - 128) - 128.(-512) = 512.(2 - 128) - (-128).512 = 512.[2 - 128 - (-128)] = 512.2 = 1024

Answer 2

512 x ( 2 - 128 ) - 128 x ( - 512 )

= 512 x 2 - 512 x 128 - ( - 128) x 512

= 512 x (2 - 128 + 128 )

= 512 x 2

= 1024 

Answer 3

=512.2-512.128+128.512

=512.(2-128+128)

=512.2

=1024

Answer 4

512 x 2 -  (128 - 128 ) x (-512)

512 x 2 - 0 x (-512)

1024-0

1024