3x^3 - 6x^2 -45x how do you solve this equation

Adiverr from the university of florida women’s swimming and diving team is competing in the ncaa zone b championships

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10