Please anyone to help me tackle this question am giving out the brainliest

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

Its worth 10000000 points need asap if you answer correctly ill mark brainliest

Consider a= {x|x is alive} f={x|x is in france} m={x|x is a national monument} w{x|x is a woman}. which statements are true regarding elements of the given sets? check all that apply.