p(-1) jika p(x) = 5 - x^2 + 3x^4 Tolong dijawab yaa beserta caranya

p (x) = 5- x^2 + 3x^4
p (-1) =5 - (-1)^2 + 3(-1)^4
= 5 - 1 + 3. 1
= 5-1 + 3 = 5-2 = 3