Question

dado o polinomio p(x)=2x⁴-3x³+x²-8x+2 calcule p(-1)
dado o polinomio p(x)=2x⁴-3x³+x²-8x+2 calcule p(1)

Answer 1

$P (-1)=2. (-1 )^{4} -3. (-1)^{3} +(-1) ^{2}-8.(-1) +2 \\ P (-1)= 2.1-3. (-1)+1+8+2 \\ P(-1)=2+3+1+8+2 \\ P (-1)=16 \\ \\ P (1)=2. 1 ^{4} -3. 1^{3} +1 ^{2}-8.1 +2\\ P (1)= 2.1-3.1+1-8+2 \\ P (1)=2-3+1-8+2 \\ P (1)=5-11\\ P (1)=-6 \\ \\ .$