The model represents a polynomial of the form ax2 bx c. An algebra tile configuration. 4 tiles are in the Factor 1 spot: 3 x , 1 negative. 2 tiles are in the Factor 2 spot: 1 x, negative. 8 tiles are in the Product spot in 4 columns with 2 rows. First row: 3 x squared, 1 negative x. Second row: 3 negative x, 1 . Which equation is represented by the model? 3x2 – 4x – 1 = (3x 1)(x – 1) 3x2 – 2x – 1 = (3x – 1)(x 1) 3x2 – 4x 1 = (3x – 1)(x – 1) 3x2 – 2x 1 = (3x – 1)(x – 1)