Question

a. / 17. (15 - 16) + 16 . ( 17 - 20 )

Answer 1

17. (15 - 16) + 16 . ( 17 - 20 )

= 17 . 1 + 16 . (-3)

= 17 + (-48)

= -31

Answer 2

=17.(-1)+16.(-2)

=(-17)+(-32)=-49

Answer 3

=17 . ( - 1 ) + 16 .( - 3 )

=   -17         +  ( -48 )

=        - 65

Answer 4

a. 17 . ( 15 - 16 ) + 16 . ( 17 - 20 )

= 17 . ( - 1 ) + 16 . ( - 3 ) 

= - 17 + ( - 48 ) 

= - 65

# Học tốt #

Answer 5

\(17.\left(15-16\right)+16.\left(17-20\right)\)

\(=17.\left(-1\right)+16.\left(-3\right)\)

\(=\left(-17\right)+\left(-48\right)\)

\(=\left(-65\right)\)

Chúc bn học tốt

Answer 6

17x(15-16)+16x(17-20)

=[17x(15-16)]+16x(17-20)

=(-17)+(-48)

=-65

Answer 7

17.(15-16)+16.(17-20)=-65