22 Nov 2020
Arrange the polynomial so that the powers of x are in descending order.
8x – 9x2y + 7y2 – 2x4
A. -2x4 – 9x2y + 7y2 + 8x
B. -2x4 – 9x2y + 8x + 7y2
C. 2x4 – 9x2y + 8x – 7y2
D. 7y2 – 9x2y – 2x4 + 8x