Factor the polynomial: -2x3 - 4x2 - 6x
a. -2x(x2 + 2x+3)
b. -2x{-x2 - 2x - 3)
c. 2x(x2 + 2x+3)
d. -2x(-x2 - 4x - 6)

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18