Question

tính hợp lí

33.(17-5)-17.(33-5)

Answer 1

= 33.17 - 33.5 - 17.33 + 17.5

= 17.5 - 33.5

= 5.(17 - 33)

= 5.(-16) 

= -80

Answer 2

33.(17-50-17.(33-5) = -15312

Answer 3

\(33\left(17-5\right)-17\left(33-5\right)=33.17-33.5-17.33+17.5=17.5-33.5=5.\left(-16\right)=-80\)

Answer 4

  33.(17-5)-17.(33-5)

=33.17-33.5-17.33-17.5

=(33.17-17.33)-(33.5-17.5)

=0-{5.(33-17)}

=0-{5.16}

=0-80

=-80

 

Answer 5

33 x (17-5) - 17 x (33-5) = -80.