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a^n = 27
3^3 = 27 n= 3
b) 5^4 = 625 n = 4
f ) ( 9y)^n = 6561Y^4
( 9y)^n = 9^4 y^4
( 9y)^n = (9y)^4
n = 4
2) a) 3^x = 243
x =5
c. x^5 = - 7776
x = - 6
f.
x / 2 = 5
X = 2 . 5 = 10