Which of the following is a quadratic equation? a. x3+4x2+7x+1=0 b. 3x4+x+4=0 c. 17x2+9x-25=0

Me : julio wears a blue shirt every 3 days. larry wears a blue shirt every 4 days. on april 11, both julio and larry wore a blue shirt. what is the next date that they will both wear a blue shirt?

Usan threw a softball 42 yards on her first try and 5112 yards on her second try. how much farther did she throw the softball on her second try than her first? express your answer in feet and inches. 9 ft 12 in. 28 ft 12 in. 28 ft 6 in.

Factor these polynomials and explain how 1. 12x - 3x^2 2. 20 - 240x^2