Dylan uses the expressions (x2 – 2x + 8) and (2x2 + 5x – 7) to represent the length and width of his bedroom. Which expression represents the area (lw) of Dylan’s room?

2x^4 - 10x^2 - 56
2x^4 + 10x^2 +56
2x^4 + x^3 - x^2 + 54x - 56
2x^4 + 9x^3 + 33x^2 + 54x - 56