Question

biết m +n=25 tính:3.m+5.n+2.m+n+m

Answer 1

3 x m + 5 x n + 2 x m + n +m

=3 x m + 5 x n + 2 x m +n x 1 + m x 1

=m x (2+3+1) +n x (5 +1 )

=m x 6 + n x 6

=6 x( m + n)

=6 x 25

= 150

Answer 2

 ai đồng ý không

Answer 3

3 x m + 5 x n + 2 x m + n + m 

= m x ( 3 + 2 + 1 ) + n x ( 5 + 1 ) 

= m x 6 + n x 6 

= 6 x ( m + n ) 

= 6 x 25 

= 150

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