Question

using distributive property of multiplication over addition and the product of (-109)×31+(+9)×31​

Answer 1

Answer:

$- 3100$

Step-by-step explanation:

$( - 109) \times 31 + 9 \times 31$

$= ( - 100 - 9) \times 31 + 9 \times 31$

Now use distributive property of multiplication over addition

$= (- 100 \times 31 ) + (- 9 \times 31) + (9 \times 31)$

$= - 100 \times 31$

$= - 3100$