Solve the polynomial inequality algebraically. x^2-2x-8 ≤ 0

Answer 1

x^2-2x-8
(x-4)(x+2)<=0
x<=4, x<=-2

Answer 2

if (x-4)(x+2)<=0

then x ≥ -2 and x ≤ 4
or

-2 ≤ x ≤ 4