Question

X log (x²+x+1)=x log 13
tolong dijawab yaa...
pakai cara :3

Answer 1

Verified answer

x log (x²+x+1)=x log 13
⇔ x² + x + 1 = 13
⇔ x² + x - 12 = 0
⇔ (x + 4)(x - 3) = 0
x = -4   atau   x = 3

HP : {-4, 3}