Question

Subtract 8+7i from 4-16i​

Answer 1

12-9i but in order its -9i+12

Explanation:

since 8 and 4 are both positive add them up for 12 and 7i & -16 is -9i and the variable always comes first (a rule in math)

Answer 2

-4 -23i

Explanation:

(4-16i) - (8+7i)

Distribute the minus sign

4-16i -8-7i

Combine like terms

4-8 -16i -7i

-4 -23i