Question

Solve. 64^x = 16^x–1

Answer 1

would it be x=-2?

Answer 2

Get the base same again.
\(\Large \color{MidnightBlue}{\Rightarrow (4^3)^x = (4^2)^{x - 1} }\)

Multiply the inside exponent by outside exponent.
\(\Large \color{MidnightBlue}{\Rightarrow 4^{3x} = 4^{2x - 2} }\)

Equate the exponents.
\(\Large \color{MidnightBlue}{\Rightarrow 3x= 2x - 2 }\)
\(\Large \color{MidnightBlue}{\Rightarrow x = -2 }\)

Answer 3

Correct :)

Answer 4

thank you! you are suck a great help.

Answer 5

That's me in the pic...they say that I look like a creeper. Do I?

Answer 6

suck? ;o

Answer 7

lol my bad. and just a little. lol

Answer 8

lol I was jk that ain't me ;P

Answer 9

oh okay good.