I hope this help you. Good luck
Answer:
86
Step-by-step explanation:
32×4=128
128-42=86
Answer:
-1+3i
Step-by-step explanation:

Sqr root of 25 and 36 are 5 and 6 respectively
Sqr root of -25 and -4 are 5i and 2i respectively
Combine like with like
5-6=-1
5i-2i=3i
-1+3i