Question

verify whether the value of x given in each case are zero of the polynomial or not ​

Answer 1

p(x) = 2x + 1

Zero of the following polynomial:

==> 2x + 1 = 0

==> 2x = -1

==> x = -1/2

Answer 2

$\mathfrak \blue{here \: is \: your \: answer} \\ \mathfrak{p(x) = 2x + 1} \\ \mathfrak{p( - \frac {1 }{2} }) = 2( - \frac{1}{2} ) + 1 \\ p( - \frac{1}{2} ) = - \frac{2}{2} + 1 \\ p( - \frac{1}{2} ) = - 1 + 1 \\ p( - \frac{1}{2} ) = 0 \\ so... - \frac{1}{2} \: is \: zero \: of \: the \: above \: equation$

Hope my answer will help you.

or

2x+1=0

2x=-1

x=-1/2