Question

Dado os polinômios P(x)= -4x³+2x²+x-1,calcule p(1) p(2) p(-3) p(0)

Answer 1

p(1) = -4.1³+2.1²+1-1
p(1) = -4.1+2.1+0
p(1) = -4+2
p(1) = -2

p(2) = -4.2³+2.2²+2-1
p(2) = -4.8 +2.4+1
p(2) = -32+8
p(2) = -24

p(-3) = -4.(-3)³+2.(-3)²+(-3)-1
p(-3) = -4.(-27)+2.9+3
p(-3) = 108+18+3
p(-3) = 129

p(0) = -1