Question

No 10 tolong y we susah kali soalny tolong...

Answer 1

Log (x-2) + log (x+1) < 2 log (x+4)
log [(x-2)(x+1)] < log (x+4)²
[(x-2)(x+1)] < (x+4)²
x²-x-2< x²+8x +16
-x-8x<16+2
-9x<18
x> -2
titik uji..
x<-1
x>2
x>-4
maka yg memungkinkan
x<-1
x>-4
jadi
jawabannya -4