Question 1078074
For an even function, {{{f(x)=f(-x)}}}
For example, for number 1,
{{{x^2+6x+9=(-x)^2-6x+9}}}
{{{x^2+6x+9=x^2-6x+9}}}
{{{12x=0}}}
{{{x=0}}}
No, this is only valid when {{{x=0}}} so it is not even.
Do the same for the remaining 4 choices.