tentukan himpunan penyelesaian dari persamaan eksponen berikut!
[tex] {5}^{x {}^{2} } {}^{ - } {}^{2x { - }^{ {}^{} } } {}^{8} = 1[/tex]
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[tex] {5}^{x {}^{2} } {}^{ - } {}^{2x { - }^{ {}^{} } } {}^{8} = 1[/tex]
[tex]5^{x^2-2x-8}=1\\\\5^{x^2-2x-8}=5^0\\\\x^2-2x-8=0\\\\(x + 2)(x - 4) = 0\\\\(x + 2) = 0\ atau\ (x-4)=0\\\\x = -2\ atau\ x = 4[/tex]
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