Question

Solve the equation

log10 (x + 2) + log10 (x – 2) = log10 3 + 3log10 4.​

Answer 1

Answer:

log 10 (x+2)(x-2) = log 10 (3x64)

log 10 (x^2 - 4) = log 10 192

(x^2-4 ) = 192

x^2 = 192+4

x^2 =196

x = +4 or -4

Answer 2

Answer:

x=14

Step-by-step explanation:

log (x^2-4)=log(3*4^3)

x^2-4=192

x^2=196

x=14