P(x)=x^2-2x-8 and q(x)=x^2-5x+14 what are the zeros of p(x) +q(x)?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective