favourite math question number.three

17) If w is a positive integer and w^3 = 9w , then w^5 is equal to ..

for this question , i just guessed 3 randomly
and ..

3^3 = 27
9 x 3 = 27

so then ,

3^5 is 243

to solve this question i just used
guess and check
and somehow , my first guess was correct
YAY :)