Question

try to solve this question in video​

Answer 1

a) -90

b) -28

c) -900

.

..

...

...If u got it then mark me as BRAINLIEST and FOLLOW me and LIKE my answer

Answer 2

Answer:

a)(-9)*10

-(9*10)

ans -90

b)4*(-7)

-(4*7)

ans -28

c)(-5)*(-6)*(-30)

-(5*6*30)

-(30*30)

-30to the power 2

ans -900

it will help u friend