Does any one nows how to solve this

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.