Factorise

$49 x^{2}-35 x+6$

Evaluate

$(153)^{2}$

Classify the following as linear, quadratic or cubic polynomial

$x^{3}+5 x^{2}+12$

Find the following product :

$(2 x-y+3 z)\left(4 x^{2}+y^{2}+9 z^{2}+2 x y+3 y z-6 x z\right)$

Expand

$(6 x-7)^{2}$

For the polynomial

$\frac{x^{3}+2 x+1}{5}-\frac{7}{2} x^{2}-x^{6},$ write

$(i)$ the degree of the polynomial

$(ii)$ the coefficient of $x^{3}$

$(iii)$ the coefficient of $x^{6}$

$(iv)$ the constant term