Question

Someone pls answer ? It’s 8,9,1,2

Answer 1

Explanation:

8.

any number ×0=0

so b

9.

additive identity

any number+0=same number

c

1.

`((3+u)^2)/(8) =((3+5)^2)/(8) =(8^2)/(8) =(64)/(8) =8\\where ~u=5`

2.

-2(a-7)=-2×a-2×(-7)=-2a+14