Question

Verify whether the following is zeros of the polynomial, indicated against them.
$p\left(x\right)=(x+1)(x-2),x=-1,2$

Answer 1

$p\left(x\right)=(x+1)(x-2)$

$p(-1)=0$

$p\left(2\right)=0$

Since $p\left(x\right)=0$ for $x=-1,2$

So, we can say that they are zeroes of $p\left(x\right)$