VTMO 2013 — Grade 8 — semifinal Question 6

Question 6

For $P \left(x\right) = \left(x - 2\right) \left(x - 1\right) \left(x + 1\right) \left(x + 2\right)$, which listed $x$ gives $P \left(x\right) \gt 0$?

$x = 1.5$
$x = - 1$
$x = - 0.5$
$x = - 1.5$
$x = 2$