The number of real zeros of $y=p(x)$ is ......... in the given figure.

Find the zeros of the following quadratic polynomial: $p(x) = 4x^2 - 256$.

The zeros of cubic polynomial $p(x) = ax^3 + bx^2 + cx + d$; $a \neq 0, a, b, c, d \in R$ are $\alpha, \beta$ and $\gamma$; then $\alpha\beta + \beta\gamma + \gamma\alpha = \ldots$

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.

Obtain the quadratic polynomial in the standard form with the following coefficients: $a=1, b=-10, c=25$.

Draw the graph of $p(x) = 2x - 5$ and find the zeros of this polynomial.