fireplace
fireplace
12-06-2018
Mathematics
contestada
[tex] {3}^{x} = {9}^{x + 2} [/tex]
Respuesta :
jimthompson5910
jimthompson5910
12-06-2018
One method to solve is to rewrite 9 as a power of 3 and then equate exponents to solve for x
3^x = 9^(x+2)
3^x = (3^2)^(x+2)
3^x = 3^(2(x+2))
x = 2(x+2) <<-- bases are equal, so exponents must be equal
x = 2x+4
x-2x = 4
-x = 4
x = -4
Answer: x = -4
Answer Link
VER TODAS LAS RESPUESTAS ( 81+ )
Otras preguntas
What has been more responsible for the fall of empires external or internal problems?
What is poetry based on?
This leader's policies pushed Germany toward war. Otto von Bismarck Kaiser Wilhelm Otto von Wilhelm Kaiser von Bismarck ----------- Q2: One of the major
How does the atmosphere make the earth suitable for life?
Which of the following types of brands is most likely to be recognized by its logo? a. store b. national c. generic d. house
what general type of plant food is produced by photosynthesis
décris une classe de français(atmosphere, activites)
1,000,000,000 multiplied by 10000
do lemonade dissolve in sand
If angle A in the diagram equals 45 degrees and angle B is 4x + 5 degrees, determine the value of x. A) 10 degrees B) 25 2 degrees C) 40 degrees D)
