Simplify -3p^3+5p+(-2p^2) +(-4) -12p +5 )

Simplify the following:

8 p^3 - 3 p^3 - 2 p^2 + 5 p - 12 p - 4 + 5

Grouping like terms, 8 p^3 - 3 p^3 - 2 p^2 + 5 p - 12 p - 4 + 5 = (-3 p^3 + 8 p^3) - 2 p^2 + (5 p - 12 p) + (-4 + 5):

(-3 p^3 + 8 p^3) - 2 p^2 + (5 p - 12 p) + (-4 + 5)

8 p^3 - 3 p^3 = 5 p^3:

5 p^3 - 2 p^2 + (5 p - 12 p) + (-4 + 5)

5 p - 12 p = -7 p:

5 p^3 - 2 p^2 + -7 p + (-4 + 5)

5 - 4 = 1:

5 p^3 - 2 p^2 - 7 p + 1

since no one answered yet i will give it a shot, not completely sure tho.

i think it should be y=cos(x+2pi), (third answer, answer c)

good luck.