Answer:
P(-1) = -18
P(5) = 6540
Step-by-step explanation:
Given the polynomial function
P(x) = 9x⁴+9x³-11x²+12x+5
We are to find p(-1) and p(5)
P(-1) = 9(-1)⁴+9(-1)³-11(-1)²+12(-1)+5
P(-1) = 9(1)+9(-1)-11(1)-12+5
P(-1) = 9-9-11-12+5
P(-1) = -23+5
P(-1) = -18
Get p(5)
P(5) = 9(5)⁴+9(5)³-11(5)²+12(5)+5
P(5) = 9(625)+9(125)-11(25)+65
P(5) = 5625+1125-275+65
P(5) = 6540
