What is the additive inverse of the polynomial -6^3+4x^2-4x

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

‼️‼️‼️‼️‼️the pressure exerted on the walls of a container by a gas enclosed within it is directly proportional to the temperature of the gas. if the pressure is 6 pounds per square inch when the temperature is 440 f, find the pressure exerted when the temperature of the gas is 380°f. (show work)

Answer asap! urgent! will give brainliest!