Solve equation by using quadratic method: 15x^4-11x^2+2=0

Avideo game enthusiast saved $750 to spend on a video game player and games. the player costs $400. the games costs $49 each. at most how many games can this enthusiast buy along the player

If it worker is paid $8.16 per hour and worked 8.5 hours in one week how much is he or she paid for that week

The function with the lowest output values as x approaches infinity is . the function with the greatest output values as x approaches infinity is .