X 3 x2 9 0 July 8, 2019 16 32 64 128 Lg x2 9 )- lg x 3 )= 0 X2 − 8 3 x 16 9 0 X2 9 x 3 3x 1 0 X2 − 2 3 x 1 9 0 Diketahui persamaan x2 p 3 x 9 0 X2 − 10 3 x 25 9 0 X2 9 2 x 3 2 0 X2 9 5x x 3 )= 0