how would you solve 32^x =16^x-4
Maths Question Watch
- Thread Starter
Last edited by OmarAl; 18-09-2016 at 18:04.
- 18-09-2016 17:56
- Official TSR Representative
- 20-09-2016 19:10
Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.
Just quoting in Fox Corner so she can move the thread if needed
Spoiler:Show(Original post by Fox Corner)
- 20-09-2016 19:16
Make everything to have 2^ then just rénovés the twos (equate term méthod)
5x = 4x -2
X = -2
As 2^5 is 32 And (2^5)^x becomes 5x when powers are equated after following the rules of indices.