Answer:
(2p+7)(3p²+4p-3)
2p(3p²+4p-3)+7(3p²+4p+3)
(6p³+8p²-6p)+ (21p²+28p+21)
6p³+29p²-6p+21
See attached pic
x = -10 is your answer
Step-by-step explanation:
slope = -3
slope is: (delta y)/(delta x)
so slope = (15-3)/(0-4)
= -3