Add 1. (5x4 - x + 18x3 + 10x2) + (- 5x4 * XI 10x²) 2. (- 7x2 + 14 + 2x) + (10x + 7 - 5x 3. (- 5m² + 3m3 -- 22m) + (18m + 5m2 + 38m) 4. (15k? + 30k - 984 - 16K5) + (2K4 + k + 8k - 4K5) 5. |- 22n3 - 3n - n?) + (- 10n - 33n2 -- 4n3) (– - ) 2​

Add 1 5x4 X 18x3 10x2 5x4 XI 10x 2 7x2 14 2x 10x 7 5x 3 5m 3m3 22m 18m 5m2 38m 4 15k 30k 984 16K5 2K4 K 8k 4K5 5 22n3 3n N 10n 33n2 4n3 2 class=