Find the value of the polynomial $5x - 4x^2 + 3$ at $x = -1$.

Find $p(0)$,$p(1)$,and $p(2)$ for the following polynomial: $p(x) = x^{3}$

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer: $y + \frac{2}{y}$

Write the degree of the following polynomial: $5x^{2} + 12x + 4$.

Find the value of the following polynomial at the indicated value of the variable:
$q(y) = 5y^3 - 4y^2 + 14y - \sqrt{3}$ at $y = 2$

Write the degree of the following polynomial: $x^{50}-1$.