25x^2 - 30x + 9 + 144x^2 + 120x + 25 - 49 + 182x + 169 + 34x^2 - 17x - 410
Combine like terms:
203x^2 + 272x + 155 - 49 + 182x + 169 - 17x + 9
203x^2 + 437x + 125
Therefore, the final expression is 203x^2 + 437x + 125.
25x^2 - 30x + 9 + 144x^2 + 120x + 25 - 49 + 182x + 169 + 34x^2 - 17x - 410
Combine like terms:
203x^2 + 272x + 155 - 49 + 182x + 169 - 17x + 9
203x^2 + 437x + 125
Therefore, the final expression is 203x^2 + 437x + 125.