Which polynomial is in standard form?
A)
2x – 3×2 – 4x} + 6×4 + 8
B)
2×4 – 7x² – 6x² + 3x + 9
5 + 7×2 + 6x + 3×5 + x
D)
5 + 7×3 – 6x² + 3x + 9x