For $p(x) = 3x^3 + 2x^2 + 7x + 8$,$p(-1) = \dots$

Find the zeros of $p(x)=x^{3}-4 x$ and show them graphically.

State the degree of the following polynomial: $p(x) = (x^{1/2})^{50} - 5x^{10} - 9x^2 + 15$.

$A$ dealer bought $x^{2}+2x+3$ pieces of mobiles for Rs. $x^{3}+6x^{2}+11x+12$. Find the price of one mobile.

Find the zeroes of the following polynomial by the factorisation method and verify the relationship between the zeroes and the coefficients of the polynomial: $4x^2 - 3x - 1$

If the zeroes of the quadratic polynomial $ax^{2} + bx + c, c \neq 0$ are equal,then