PLEASE HELP ASAP 25 PTS + BRAINLIEST TO RIGHT/BEST ANSWER

Answer:
1-7i
Step-by-step explanation:
Multiply the parenthesis
-3-4i-3i-4i²
By Definition i²=-1
-3-4i-3i-4 x (-1)
Any expression multiplied by -1 equals its opposite
-3-4i-3i+4
Calculate the sum
1-4i-3i
Collect like terms
1-7i