Evaluate

$(215)^{2}$

Factorise

$\frac{4 x^{2}}{9}-\frac{x}{3}+\frac{1}{16}$

Factorise

$49 x^{2}-42 x+9$

For polynomial $p(x)=x^{3}-3 x^{2}+8 x+12$, $p(-1)=\ldots \ldots \ldots$

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

$x+6$

Expand

$(2 x-3)(2 x+5)$