I need help with this one

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?