Zero of the polynomial $p(x)=2 x+5$ is
$-\frac{2}{5}$
$-\frac{5}{2}$
$\frac{2}{5}$
$\frac{5}{2}$
If $x+1$ is a factor of $a x^{3}+x^{2}-2 x+4 a-9,$ find the value of $a$.
Which of the following expressions is a polynomial, state the reason ? If an expression is polynomial, state whether it is a polynomial in one variable or not
$x^{2}-15 x+50$
Classify the following as a constant, linear,quadratic and cubic polynomials:
$1+x+x^{2}$
Factorise
$x^{3}-8 y^{3}-27-18 x y$
Factorise
$x^{3}+2 x^{2}-13 x+10$