Which expression is equal to the polynomial below? 2x4 + 5x3 – 8x – 20

x3(2x + 5) + 4(2x – 5)

x3(2x + 5) – 4(2x + 5)

x3(2x – 5) – 4(2x – 5)

x3(2x + 5) + 4(2x + 5)