Answer:
x1 = 2
x2 = -1/3
Step-by-step explanation:
3x^2-5x-2=0
D=25-4*(-2)*3 = 25 + 24 = 49 --> sqrt 49 = 7
x1 = 5 + 7 / 2*3 = 2
x2 = 5 - 7 / 2*3 = -1/3
4 hours ( i think sorry if wrong)
5 and -4.5
10/2= 5 -9/2 = -4.5
I really hope this helps
is a factor of a polynomial, then 
is a root of this polynomial.