Write the coefficients of $x^{2}$ in each of the following polynomials
$4+7 x+3 x^{2}$
$11$
$6$
$3$
$1$
If $x+y=-4,$ then what is the value of $x^{3}+y^{3}-12 x y+64 ?$
From the following polynomials find out which of them has $(x+1)$ as a factor
$6 x^{3}+11 x^{2}-5 x-12$
The value of the polynomial $5 x-4 x^{2}+3,$ when $x=-1$ is
$3 x^{3}-8 x^{2}+14 x-5$
Evaluate the following products without multiplying directly
$78 \times 84$
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