Find the zero of the polynomial in each of the following cases

$q(m)=0.3 m-0.15$

Without actually calculating the cubes, find the value of each of the following

$\left(\frac{1}{2}\right)^{3}+\left(\frac{1}{3}\right)^{3}-\left(\frac{5}{6}\right)^{3}$

With the help of the remainder theorem, find the remainder when the polynomial $x^{3}+x^{2}-26 x+24$ is divided by each of the following divisors

$x-4$

Expand

$(3 x-2)(3 x-6)$

Factorise

$6 x^{3}+7 x^{2}-14 x-15$

Write the coefficient of $x^{2}$ in the following polynomials

$\pi x^{2}-\frac{22}{7} x+3.14$