11-05-2017
Mathematics

contestada

log 3(x^2+6x)=log(2x+12)

Respuesta :

mreijepatmat mreijepatmat

15-05-2017

log 3(x²+6x)=log(2x+12). I assume that 3 is a factor of a log with base 10:

if so, then:
log(3x²+18x)=log(2x+12)

==> 3x²+18x=2x+12==> 3x²+16x-12 = 0
solve this quadratic equation & you will find: x'=2/3 & x"=-6

Answer Link

Otras preguntas

If x-6,x-2 and x+10 are three consecutive terms of a geometric progression,find the value of x

PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST

HELP !!! find the surface area of each figure. Round it to the nearest tenth.

4. A turtle crawls 567 mm in 27 minutes. How far (measured in cm) can the turtle crawl in a minute?

Please answer ASAP, I would like to double check my answer with someone Global warming is A. a scientifically proven fact B. caused by humans C. disputed for

Apply the dristrbutie property to factor out the greatest common factor of 22c+33d

write the letter to your friend in town suggesting how he should protect from the danger of drug addiction?

how can we commercialize and modernize agriculture?

After Rachel had worked for the company for more than 1 0 years, ------- was finally promoted to a managerial position.

why is the fuse used in a circuit called safety fuse?