Tolong di bantu jawab ya please !!!!
tentukanlah persemaan eksponen berikut
tentukanlah persemaan eksponen berikut
MicoArrafi
![$\begin{align} 2^{-x}\times\left[\ \frac{1}{4}\ \right]^{x+1}&=\frac{1}{32}\\2^{-x}\times\left[\ 2^{-2}\ \right]^{x+1}&=2^{-5}\\2^{-x}\times2^{-2x-2}&=2^{-5}\\2^{-x-2x-2}&=2^{-5}\\2^{-3x-2}&=2^{-5}\\-3x-2&=-5\\-3x&=-5+2\\-3x&=-3\\x&=-3:-3\\x&=\bold1 \end](https://tex.z-dn.net/?f=%24%5Cbegin%7Balign%7D+2%5E%7B-x%7D%5Ctimes%5Cleft%5B%5C+%5Cfrac%7B1%7D%7B4%7D%5C+%5Cright%5D%5E%7Bx%2B1%7D%26%3D%5Cfrac%7B1%7D%7B32%7D%5C%5C2%5E%7B-x%7D%5Ctimes%5Cleft%5B%5C+2%5E%7B-2%7D%5C+%5Cright%5D%5E%7Bx%2B1%7D%26%3D2%5E%7B-5%7D%5C%5C2%5E%7B-x%7D%5Ctimes2%5E%7B-2x-2%7D%26%3D2%5E%7B-5%7D%5C%5C2%5E%7B-x-2x-2%7D%26%3D2%5E%7B-5%7D%5C%5C2%5E%7B-3x-2%7D%26%3D2%5E%7B-5%7D%5C%5C-3x-2%26%3D-5%5C%5C-3x%26%3D-5%2B2%5C%5C-3x%26%3D-3%5C%5Cx%26%3D-3%3A-3%5C%5Cx%26%3D%5Cbold1+%5Cend "$\begin{align} 2^{-x}\times\left[\ \frac{1}{4}\ \right]^{x+1}&=\frac{1}{32}\\2^{-x}\times\left[\ 2^{-2}\ \right]^{x+1}&=2^{-5}\\2^{-x}\times2^{-2x-2}&=2^{-5}\\2^{-x-2x-2}&=2^{-5}\\2^{-3x-2}&=2^{-5}\\-3x-2&=-5\\-3x&=-5+2\\-3x&=-3\\x&=-3:-3\\x&=\bold1 \end")
2 votes
Thanks 1
karrina
2^-5 kok bisa jadi 2^5 itu gimana ?
MicoArrafi
Sudah saya ganti, thankyou sudah diingatkan :)
karrina
iya, mksh ya atas jawabanya :)
karrina
bisa tolong jawab ini gak kak http://brainly.co.id/tugas/2914150