8x 3 12x 2 6x 1 0 July 8, 2019 16 32 64 128 8x 3 12x 2 6x 1 0 tìm x Tìm x biết 8x 3 12x 2 6x 1 0 1) 8x ^ 2 - 12x + 36 = 0 3) 3x ^ 2 + 32x + 80 = 0 6x ∙ (8x 6 ) 2 (8x 4 ) 3