Question

is by answer right? Solve. 64^x = 16^(x–1)
answer?
x = –2

Answer 1

64x=16x-16 to 48x= -16 x = -3

Answer 2

\[64^x = 16^{x-1}\]
\[4^{3x} = 4^{2(x-1)}\]
\[3x = 2(x-1)\]
\[3x = 2x - 2\]
\[3x - 2x = -2\]
\]x = -2\]

Answer 3

would that be like plugging in-1/3??

Answer 4

you got correct answer