Question

135*-34+35*75-35*-45-135*86

thang viet chi tao

Answer 1

=135.(-34)-135.86+35.75-(-45)

=135[(-34)-86]+35[75-(-45)]

=135(-120)+35.120

=-135.120+35.120

=120(-135+35)

=120.(-100)

=-12000

nói mk đi nha