Answer:
3 + 9i
Step-by-step explanation:
(4 + 2i) - (1 - 7i)
distribute the (-)
(4 + 2i) - 1 + 7i
combine like terms
3 + 9i
Answer:
20
Step-by-step explanation:
x/2+15=25
x/2=10
x=20
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Have a nice day.
Step-by-step explanation:
sqrt(-4) = sqrt(4×-1) = sqrt(4)×sqrt(-1) = 2i
Answer:
32 pi
Step-by-step explanation:
im sorry if im wrong im not the smartest haha