Verify whether the following are zeroes of the polynomial indicated against them:
$p(x) = (x + 1)(x - 2)$,$x = -1, 2$

(N/A) If $x = -1$ and $x = 2$ are zeroes of the polynomial $p(x) = (x + 1)(x - 2)$,then $p(-1)$ and $p(2)$ must be equal to $0$.
First,substitute $x = -1$ into the polynomial:
$p(-1) = (-1 + 1)(-1 - 2) = (0)(-3) = 0$.
Next,substitute $x = 2$ into the polynomial:
$p(2) = (2 + 1)(2 - 2) = (3)(0) = 0$.
Since both $p(-1) = 0$ and $p(2) = 0$,it is verified that $x = -1$ and $x = 2$ are indeed the zeroes of the given polynomial.