Question

log4 x + log4(x + 4) = 0 find real number solutions

Answer 1

Do you know you log rules?

Answer 2

i know some but for my hw we dont have explanations for ones like htis

Answer 3

use product law of logs..change to exponential..solve

Answer 4

i dony know how to do this problem

Answer 5

Things will work out for the best.

Answer 6

log4 x + log4(x + 4) = 0
log4 [x ( x +4) ] = 0
[x ( x +4) ] = 4^0 = 1
x^2 + 4x - 1 = 0
x = -2 +/- sqrt (5)

Answer 7

Just plug into your calculator to get result!