An algebra configuration where the largest tile is labeled negative x squared, 3 tiles are labeled plus x, where each tile is half the size of the largest tile, and 4 tiles labeled minus that are one-quarter the size of the largest tile.
Which polynomial represents the algebra tile configuration shown?

x2 + 3x + 4
x2 + 3x − 4x
−x2 − 7
−x2 + 3x − 4