Use suitable identities to find the products : $(x+8)(x-10)$
Write the coefficients of $x^2$ in each of the following :
$(i)$ $\frac{\pi}{2} x^{2}+x$ $ (ii)$ $\sqrt{2} x-1$
Find a zero of the polynomial $p(x) = 2x + 1$.
Without actually calculating the cubes, find the value of each of the following : $(28)^{3}+(-15)^{3}+(-13)^{3}$
Factorise : $12 x^{2}-7 x+1$