If one zero of the quadratic polynomial $x^{2}+3x+k$ is $2$,then the value of $k$ is

For each of the following,find a quadratic polynomial whose sum and product of the zeroes are $\frac{21}{8}$ and $\frac{5}{16}$ respectively. Also,find the zeroes of these polynomials by factorisation.

Which of the following statements is true?

Find the zeroes of the following polynomial by the factorisation method and verify the relationship between the zeroes and the coefficients of the polynomial:
$5 t^{2}+12 t+7$

Identify the type of the following polynomial based on its degree: $p(x) = 7x^2 - 5x^3 + 3$.

The value of $p(x) = 2x^{4} - 3x^{3} + 7x + 5$ at $x = -2$ is $\ldots \ldots \ldots \ldots$