Question

42×15-28×15+86×15

Answer 1

\(42.15-28.15+86.15\)

= \(\left(42-28+86\right).15\)

= \(100.15\)

= \(1500\)

Chúc bạn học tốt !!!

Answer 2

đs

1500

hok tốt

Answer 3

=1500

Answer 4

=1500 nha bạn! ^.^ -.- ?

hok tốt nhé !^o^

Answer 5

\(42\cdot15-28\cdot15+86\cdot15\)

\(=15\cdot\left(42-28+86\right)\)

\(=15\cdot100\)

\(=1500\)