Question

125(1/5)^x_4=5 how do i solve to get x=?

Answer 1

\[\large 125(\frac{1}{5})^{x_4}=5\]
divide by 125 u have
\[\large (\frac{1}{5})^{x_4}=\frac{5}{125}=\frac{5}{5*25}=\frac{1}{25}\]
does that help?

Answer 2

not really sorry still confused :/ because now i have

\[(1\5)^x_4=1/25\]

Answer 3

should i make the 1/5 into (5/25)^x_4

Answer 4

just compare the LHS and RHS in the equation i gave u

Answer 5

what does \(x_4\)mean?

Answer 6

is it \(\frac{x}{4}\) or \(4x\) or something else?

Answer 7

x sub 4 power

Answer 8

so it is just a variable then
call it \(x\)

Answer 9

btw not to be critical but there is not such thing as "x sub 4 power"
there is \(x^4\) read "x to the 4th power" or \(x_4\) read "x four"

Answer 10

i guess its x4 then :o

Answer 11

if you have
\[\left(\frac{1}{5}\right)^x=\frac{1}{25}\] then you can solve for \(x\) by asking what power of \(\frac{1}{5}\) would get \(\frac{1}{25}\)

Answer 12

how do i get rid of the subscrpt then ? \[125 (1/5)^(x_4) = 5 \]

Answer 13

\[(1/5)^(x_4)=1/25\]