Question

Giúp mik vs mik cần gấp lắm mik cần giúp dỡ

Answer 1

f(1)=3

f(-1)=3

Answer 2

\(\text{f(1)=}2.1^2+1=3\)

\(\text{f(-1)=}2.\left(-1\right)^2+1=3\)

\(\text{f(2)=}2.2^2+1=9\)

\(\text{f(0)=}2.0^2+1=1\)

\(\text{f(-3)=}=2.\left(-3\right)^2+1=19\)