3x 2 9x 4 0 July 8, 2019 16 32 64 128 3x 2 9x 4 0 quadratic formula 3x 2 9x 4 0 solve for x 3x 3 10x 2 9x 4 0 3x 4 9x 2 12 0 9x 2 3x 1 4 0 3x 4 9x 2 6 0 2x 3 9x 2 3x 4 0 3x 4 5x 3 9x 2 9x 10 0 Jumlah kebalikan akar akar 3x 2 9x 4 0 Jumlah kebalikan akar akar 3x 2 9x 4 0 adalah 9x 2 16 3x 4 2 0 9x 2 4 3x 2 x 1 0