eba0lleneishambe
eba0lleneishambe
08-11-2016
Mathematics
contestada
log3(X-5)+log3(x+3)=2
Respuesta :
Nirina7
Nirina7
11-11-2016
LnA +LnB= LnA.B
so we get
Log3(X-5)+log3(x+3)=Ln3(x-5)(x+3)=2 implies
(x-5)(x+3)=2^3=8, so we can solve easily the quadratic equation
x^2-2x-23=0, there are two solution x=1 -sqrt(24), and x=1+sqrt(24)
Answer Link
VER TODAS LAS RESPUESTAS ( 62+ )
Otras preguntas
Which source of evidence did Wegener use to support his theory of continental drift? A.fossils B.magnetic fields C.satellite mapping D.warm equatorial climates
Which equation is equivalent to 2/3x-5/6=-5/12x1/4
The weight of the buggy was 40 N on Mars. When the buggy landed on Mars it rested on an area of 0.025 m2.Calculate the pressure exerted by the buggy on the surf
Find the value of x, rounded to the nearest tenth.
Rani scores 4 times as many baskets as Layla. Tash scores 8 baskets less than Rani. They score 100 baskets in total. How many baskets does Tash score?
Gradients of a line and equations (link attached)
what is included in counting the electron domain around the central atom vsepr theory
Someone help mee on question 10
I NEED HELP ASAP! THANKS :)
If the frequency of a periodic wave is cut in half while the speed remains the same, what happens to the wavelength
