Question

Solve the inequality (x+1)(x-3)(x+9)^2 > 0

Answer 1

from the last part of the equation
x^2 + 18x + 81 > 0
x(x + 18) > -81
x > 0
x > -99
from the first two parts of the equation
x > -1
x > 3

so the answer is just
x > 3
which makes sense, because if x = 3, then the whole thing will be 0, so it has to be bigger than 3