Question

Không tính tổng, hãy biến đổi tổng sau thành tích có 2 thừa số: 24.24+28.28+48.48

 

Answer 1

Ta có: 24.24+28.28+48.48

= 24.24+(24+4).(24+4)+(24+24).(24+24)

=24.24+24.24+4.24+24.4+4.4+24.24+24.24+24.24+24.24

= ( 24.24+24.24+24.24+24.24+24.24+24.24)+4.24+4.24+4.4

= 6(24.24)+24.8+4.4

= (6.24+6.24+24.8)+4.4

= 24.20+4.4

= 4.6.4.5+4.4

= 4.4(6.5+1)

= 16.(30+1)

= 16.31

Answer 2

Ta có: 24.24+28.28+48.48

= 24.24+(24+4).(24+4)+(24+24).(24+24)

=24.24+24.24+4.24+24.4+4.4+24.24+24.24+24.24+24.24

= ( 24.24+24.24+24.24+24.24+24.24+24.24)+4.24+4.24+4.4

= 6(24.24)+24.8+4.4

= (6.24+6.24+24.8)+4.4

= 24.20+4.4

= 4.6.4.5+4.4

= 4.4(6.5+1)

= 16.(30+1)

= 16.31

Answer 3

Ta có: 24.24+28.28+48.48

= 24.24+(24+4).(24+4)+(24+24).(24+24)

=24.24+24.24+4.24+24.4+4.4+24.24+24.24+24.24+24.24

= ( 24.24+24.24+24.24+24.24+24.24+24.24)+4.24+4.24+4.4

= 6(24.24)+24.8+4.4

= (6.24+6.24+24.8)+4.4

= 24.20+4.4

= 4.6.4.5+4.4

= 4.4(6.5+1)

= 16.(30+1)

= 16.31