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2^x = -2
x = 1/4
2 adalah basis
-2 adlh pangkat
x adlh hasil dr basis yg sudah d pangkatkan
kalau di jadikan bilangan berpangkat, 1/9 = 9^ -1= (dengan menggunakan invers)
2^x = -2
dit: x
jwb: 2^x = -2
x= -1