Expand
$\left(\frac{x}{2}-\frac{2}{5}\right)^{2}$
$\frac{1}{4} x^{2}-\frac{2}{5} x+\frac{4}{25}$
Factorise the following:
$9 x^{2}-12 x+3$
If $x^{51}+51$ is divided by $x+1,$ the remainder is
Expand the following:
$\left(\frac{1}{x}+\frac{y}{3}\right)^{3}$
Factorise the following quadratic polynomials by splitting the middle term
$6 x^{2}+7 x-20$
Find the quotient and the remainder when $x^{3}+x^{2}-10 x+8$ is divided by
$x+3$
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