brianaboatman brianaboatman
  • 22-03-2018
  • Mathematics
contestada

logx(8x-3)-logx 4=2
please help ill give you everything i have !!

Respuesta :

Professor1994 Professor1994
  • 22-03-2018
logx (8x-3) - logx 4 = 2
logx [(8x-3)/4] = 2
x^2=(8x-3)/4
4x^2=4(8x-3)/4
4x^2=8x-3
4x^2-8x+3=8x-3-8x+3
4x^2-8x+3=0
4(4x^2-8x+3=0)
(4^2)(x^2)-8(4x)+12=0
(4x)^2-8(4x)+12=0
(4x-2)(4x-6)=0
2(4x/2-2/2)2(4x/2-6/2)=0
4(2x-1)(2x-3)=0
4(2x-1)(2x-3)/4=0/4
(2x-1)(2x-3)=0
Two options:
1) 2x-1=0
2x-1+1=0+1
2x=1
2x/2=1/2
x=1/2

2) 2x-3=0
2x-3+3=0+3
2x=3
2x/2=3/2
x=3/2

Answer: Two solutions: x=1/2 and x=3/2
Answer Link

Otras preguntas

Which statement is true? An override needs a three-fourths vote. A conference committee is formed only for re-election purposes. A chamber is a legislative meet
The general purpose of advertising is?
In the formation of a macromolecule, what type of bond would join two amino acid subunits?                 A)           ionic bond                 B)
How can I use employ in a complex sentence?
How can I use employ in a complex sentence?
why was an educated slave seen as a threat?
A closet had a length of 10 feet and width of 4 feet. What is the perimeter of the closet?
what is the Spanish word for big
What is the correct order of the planets in the solar system
a trapezoid with a right angle and an area greater than 50