Persamaan eksponen ¼ pangkat 4+x =√2pangkat x-1

[tex] \frac{1}{4} {}^{4 + x}= \sqrt{2 {}^{x - 1} } \\ 4 {}^{ - 4 - x} = 2 {}^{ \frac{x - 1}{2} } \\ 2 {}^{ - 8 - 2x} = 2 {}^{ \frac{x - 1}{2} } \\ - 8 - 2x = \frac{x - 1}{2} \\ - 16 - 4x = x - 1 \\ - 5x = 15 \\ x = - 3[/tex]