Answer:
x = -2, -5 where -2 is a double root
Step-by-step explanation:
The real roots are the solutions to the cubic equation. You find them by setting each factor equal to 0 and solving for x.
[tex]x+2 = 0 \\x= -2[/tex]
[tex]x^2 + 7x +10 = 0\\(x+2)(x+5) = 0\\x=-2, -5[/tex]
Since -2 appears twice, it is a double root.
