Find the degree of the polynomials given : $x^{5}-x^{4}+3$
$5$
$4$
$3$
$2$
Factorise of the following : $64 m^{3}-343 n^{3}$
Factorise of the following : $8 a^{3}-b^{3}-12 a^{2} b+6 a b^{2}$
Write the degree of each of the following polynomials :
$(i)$ $5 t-\sqrt{7}$
$(ii)$ $3$
Give possible expressions for the length and breadth of each of the following rectangles, in which their areas are given : $\boxed{\rm {Area}\,:35{y^2}+ 13y - 12}$
Find the value of $k$, if $x -1$ is a factor of $p(x)$ in this case : $p(x)=k x^{2}-3 x+k$