Your answer should be a polynomial in standard form. ( − 8 p 3 + 9 p 2 q − 5 p q 2 ) + ( 8 p 3 − p q + 5 q 2 ) = (−8p ​3 ​​ +9p ​2 ​​ q−5pq ​2 ​​ )+(8p ​3 ​​ −pq+5q ​2 ​​ )