Can anyone answer this question The roots of the quadratic equation z² + az + b = 0 are -7 + 2i and -7 - 2i. What is a+b

hi please follow me

please mark me as soon brain list

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i