Find the value of each of the following polynomials at the indicated value of variables : $p(x)=5 x^{2}-3 x+7$ at $x=1$.
Find the value of each of the following polynomials at the indicated value of variables : $p(x)=5 x^{2}-3 x+7$ at $x=1$.
$p(x)=5 x^{2}-3 x+7$
The value of the polynomial $p(x)$ at $x=1$ is given by
$p(1)=5(1)^{2}-3(1)+7$
$=5-3+7=9$
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