Factor out common factor

Question

Factor out the indicated common factor of the expression. Then completely factor the expression.

x^-1 + 6x^-2 + 8x^-3;x^-3

Answer 1

(x^-3)(x^2 +6x + 8) = (x^-3)(x+4)(x+2)

or (1/x^3)(x+4)(x+2)

or (x+4)(x+2)/x^3