jhernandez5167
jhernandez5167
02-02-2015
Mathematics
contestada
solve for x
log(x–4)+log(x+3)=2logx
Respuesta :
konrad509
konrad509
02-02-2015
[tex]D:x-4>0 \wedge x+3>0 \wedge x>0\\ D:x>4 \wedge x>-3 \wedge x>0\\ D:x>4\\\\ \log(x-4)+\log(x+3)=2\log x\\ \log(x-4)(x+3)=\log x^2\\ (x-4)(x+3)=x^2\\ x^2+3x-4x-12=x^2\\ -x=12\\ x=-12\\ -12\not\in D\\ \Downarrow\\ \boxed{x\in\emptyset}[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 87+ )
Otras preguntas
P L E A S E A N S W E R A S A P P L E A S E E E E E E
On July 1, 2019, Stacy Company signed a $140,000, one-year, 6 percent note payable. The principal and interest will be paid on June 30, 2020. How much interest
PLZ HELP WILL GIVE 50 POINTS - QUADRATIC APPLICATIONS find how far away (ground distance) from the catapult will white bird be at its highest. (round to the nea
Someone please help I'm horrible at math :(
Please Help! Brainliest For Correct Answers!
Which ones to select?
Teresa is loading her car with boxes that each weigh 4 pounds. If Teresa loads 9 of these boxes, find the combined weight of the boxes. A.42 3/4 B.13 3/4 C.36
PPLEASE HELP FAST The social welfare department of town conducted a survey to know the number of illiterate males and females in the town. The results are given
What type of association is shown in the scatterplot?
At the end of each week, an employer gives some vacation hours to a few randomly selected employees. There are 25 employees in her department—11 males and 14 fe
