Which expression represents the polynomial x7+x4−8×3−2x−6×6 rewritten in descending order, using coefficients of 0 for any missing termsx7−6×6+0x5+x4−8×3+0x2−2xx7−6×6 +0x5+x4−8×3+0x2−2x 0x5+0x2−2x−8×3+x4−6×6+x70x5+0x2−2x− 8×3+x4−6×6+x7 x7−2x−6×6+0x5+x4−8x3x7−2x−6×6+0x5+x 4−8×3 x7+x4−2x−6×6−8×3+0x2+0x5x7+x4−2x−6x 6−8×3+0x2+0x5 x7+x4−8×3−2x−6×6+0