Question

Seja a função f (x)= x elevado a 2 +2x; determine
a) f (-2)=
b) f (0)=

Answer 1

$f(x)=x^2+2x\\\\\\ f(-2)=(-2)^2+2(-2)\\\\ f(-2)=4-4\\\\ f(-2)=0\\\\\\ f(0)=(0)^2+2.0\\\\ f(0)=0+0\\\\ f(0)=0$