3x = 1/81 Find x ?

1. 4
2. 9
3. 2
4. -4

-4
  • 0
-4
  • 0
1/3
  • 0
-4
  • 0
-4
  • 0
its 4
  • 0
-4
  • 1
-4
  • 0
3^x = 1 / 81
3^x = 1 / 3^4
3^x = - 3^4
On comparing
x = -4
  • 1
4.-4
  • 0
-4
  • 0
-4
  • 0
-4
  • 0
-4
  • 0
-4

 
  • 0
-4
 
  • 0
-4
  • 0
4.-4
  • 0
1&4
  • 0
4, -4
  • 0
Answer is -4
  • 0
-4
  • 0
-4
  • 0
-4
  • 0
4
  • 0
20/5-1 20/5=4 4-1=3
  • 0
the answer is -4
  • 0
What are you looking for?