Amethod used to rearrange a quadratic equation into a squared part and a number. this can allow you to find the vertex of a quadratic or solve a quadratic

Answer this question, only if you know the answer. 30 points and brainliest!

Need on this one asap im almost done with this subject

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?