Question

solve the equation:
log3 X+log3 (x-24)=4
p;ease show me step by step

Answer 1

base 3 ?

Answer 2

yes

Answer 3

\[\log _{3}x+\log _{3}(x-24)=4\]

Answer 4

right?

Answer 5

yes

Answer 6

\[x(x-24)=3^4\]can u solve from now?

Answer 7

oh.. ok.. thanks i see its now:)...

Answer 8

\[x^2-24x-81=0\]

Answer 9

(x+3)(x-27)=0

Answer 10

x=-3
x=27
x=27 is solution

Answer 11

and i so confuse about.. why dont we take the -3???

Answer 12

just the formula,look on the lesson loggarithms can't not negative

Answer 13

ok thanks:)....

Answer 14

or you can plug x=-3 and x=27 and check