Question

Solve:

Answer 1

\[2^{2x}-2^{x+1}-15=0\]

Answer 2

@ganeshie8 @triciaal

Answer 3

@Hero @Kainui

Answer 4

one approach
put the number to the right
take the logs of each side

Answer 5

what number goes to the right?

Answer 6

when you subtract logs you divide the numbers

Answer 7

I know but you said to put the number on the right. What number is that? the 2^2x? 2^x-1?15?

Answer 8

constant 15

Answer 9

isolating the x

Answer 10

using base 2

Answer 11

@Nnesha can you help?

Answer 12

sorry can u draw it out? I know its a lot to ask for

Answer 13

@ganeshie8 please help

Answer 14

@UnkleRhaukus please help

Answer 15

\[2^{2x}-2^{x+1}-15=0\\
2^{2x}-2^{x+1}=15\\2^x(2^x-2)=15\]

Answer 16

then what?

Answer 17

i'm not sure i got stuck

Answer 18

need wrong answer ??
tell me so i can try :(

Answer 19

Tell you what?

Answer 20

nvm nothing :)

Answer 21

idk how u got
2^x(2^x -2) ??

Answer 22

you should move
this -2 to other side then its become positive then you can take log