..........is one of the zeros of the polynomial $x^{3}-3 x^{2}-5 x+15$
$5$
$-5$
$3$
$-3$
Write whether the statement are True or False. Justify your answer.
The degree of the sum of two polynomials each of degree $5$ is always $5 .$
Classify the following as a constant, linear,quadratic and cubic polynomials:
$2+x$
Verify whether $3$ and $7$ are zeros of the polynomial $x^{2}-5 x-14$ or not.
If $p(x)=x^{2}-4 x+3$ then, find the value of $p(2)-p(-1)+p\left(\frac{1}{2}\right)$
The value of $249^{2}-248^{2}$ is
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