Question

b). log12(x - 3) + log12(x + 1) = 1​

Answer 1

Respuesta:

Explicación:

log(12) [x(x-1)] = 1

12 ^ log(12) [x(x-1)] = 12 ^ 1

 

x(x-1) = 12

x^2 - x - 12 = 0

(x - 4)(x + 3) = 0

x = 4 and x = -3

Since we cannot take the log of a negative number,

only x = 4 is our solution.