Python

base = 3
exponent = -4

result = pow(base, exponent)

print("Answer = " + str(result))

base = 3
exponent = 4

result = 1

while exponent != 0:
    result *= base
    exponent-=1

print("Answer = " + str(result))

the ** operator is used for power 

base ** exponent

example : 
  2 ** 4
same as : 
  2 * 2 * 2 * 2
equals : 
  16

base = 3
exponent = 4

result = 1

for exponent in range(exponent, 0, -1):
    result *= base

print("Answer = " + str(result))

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