Question

tinh bang cach hop li 

123 * 456 + 456 * 321 + 256 * 444

Answer 1

123x456+456x321+256x444

=456x(123+321)+256x444

=456x444+256x444

=444x(456+256)

=444x712

=316128

Chúc bạn học giỏi nha!!!

Answer 2

=456*(123+321)+256*444=444*(256+456)=316128

Answer 3

123 x 456 x 321 + 256 x 444

= 456 x ( 123 + 321 ) 256 x 444

= 456 x 444 + 256 x 444

= 444 x ( 456 + 256 )

= 444 x 712

= 316128

Answer 4

123 + 456 + 456 x 321 + 256 x 444

= ( 123 + 321 ) x 456 + 256 x 444

= 444 x 456 + 256 x 444

= 444 x 456 + 444 x 256

= 444 x ( 456 + 256 )

= 444 x 712

= 316128