Seudónimo Seudónimo
  • 14-07-2021
  • Mathematics
contestada

help me plz i will give you brainlist plzzzzz i beg you​

help me plz i will give you brainlist plzzzzz i beg you class=
Relax

Respuesta :

msm555
msm555 msm555
  • 15-07-2021

Answer:

Solution given:

[tex]\bold{4*3^{x+1}-9^{x}=27}[/tex]

let 3^xbe a

4*a*3-a²=27

a²-12a+27=0

a²-9a-3a+27=0

a(a-9)-3(a-9)=0

(a-9)(a-3)=0

either

a=9

3^x=3²

:.x=2

or

a=3

3^x=3^1

x=1

x=2,1

Answer Link

Otras preguntas

8. Which will probably increase population density? A increase in the food supply B decrease in available shelter O C increase in the number of freezes D decrea
Which values of m and b will create a system of equations with no solution? Select two options. y = mx + b y = -2x + 2 / 2 y=-2x+3/2
find it 3p(2square)− 2p − 5
We’re the argentine government actions a genocide?
A box has 7 apples and I take one. How much do I have left altogether?
a brand new candlestick has a length of one foot the candlestick is lit and left to burn at a rate of 1/2 inch per hour
What would the time on the lower clock read if the frequency of the wave were 0.1 Hz
how to find the base of an isosceles when given one side​
Most southern blacks were denied their right to vote. The biggest obstacle was the poll tax, a special tax that was required of all voters but was too costly fo
Iiiiiiiiiiiliiiiiiiiiil