Question

(2) Find the product by using distributive property.
(a) (-99) 28
(b) 80 X (-39) + (-1) x 80​

Answer 1

Answer:

-2872 and 3120

Step-by-step explanation:

a) -99*28 = (1-100)(30-2)

           = 30-2-3000+100 = -2872

b) 80*(-39) = (100-20)(40-1)

             = 4000-100-800+20

             = 3120

-1*80 = -80

80 X (-39) + (-1) x 80​ = 3120 -80 =3040