Question

Simplify using suitable property also mention the property used -194×143-57×(1994)

Answer 1

Answer:

-1,41,400‬

Step-by-step explanation:

-194 × 143 - 57 × 1994

-194 = (-200+6)  ,  143 = (150 - 7),  57 = (50 + 7) , 1994 = (2000 - 6)

=(-200+6) * (150 - 7) - [(50 + 7) * (2000 - 6)]

Using distributive law of multiplication,

= (-200 * 150) + (6 * 150) + (- 200 * -7) + (6 * -7) - [(50 * 2000) + (50 * -6) + (7 * 2000) + (7 * -6)]

= -30000 + 900 + 1400 - 42 -[100000 - 300 + 14000 - 42]

= -27,742‬ - [1,13,658‬]

= -1,41,400‬