Respuesta :

(-49) x 18

a(b+c) = (a x b) + (a x c)

In this case we can rewrite -49 as - (50 - 1)

(-1) x (50 - 1) x 18

= (-1 x 50 x 18( + (-1 x 1 x 18)

= -900 - 18

Therefore, (-49) x 18 = -918