(5p^2-3)+(2p^2-3p^3) step by step please

Assuming simplify then
get rid of parenthasees by assuming that there is a 1 in front of each, so multply by 1 and get rid of partenthasees so
5p^2-3+2p^2-3p^3
add like terms
7p^2-3p^3-3
normally ordered with biggest exponenst to the left from left to right decending
so
-3p^3+7p^2-3

D) the x-intercept represents adam's commission pay when he had zero total sales

Idon't know that language