Question

ache o valor numerico do polinomio p(x) = 4x3+2x-10 para :
a) P (-2)
B) P (-3)

Answer 1

-
$p(x)=4x^3+2x-10$

$p(-2)=4(-2)^3+2(-2)-10 \\ p(-2)=4(-8)-4-10 \\ p(-2)=-32-4-10 \\ p(-2)=-46$

b)
$p(-3)=4(-3)^3+2(-3)-10 \\ p(-3)=4(-27)+2(-3)-10 \\ p(-3)=-108-6-10 \\ p(-3)=-124$