Add the Polynomials 27.) 3y - 5 and 7y +8

28.) - 8xy - 4 and xy - 1

29.) 5a^3 -3a +7 and 7a^3 - 10a -8

30.) - 6x^3y + x^2 y^2 - 5xy and 8 x^3y - 10x^2 y^2 + 6

31.) x^2 -2x + 1 and x^4 + x^3 -x^2 + 5

32.) a^3b^2 - a^2b^3 and a^3b^2 - 5a^2b^3 + 7

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

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

What are the solutions of the equation? z^2 + 11z + 24 = 0 a. 8, -3 b. 8, 3 c. -8, -3 d. -8, 3