Write the following cubes in expanded form
$(2 x+7)^{3}$
$8 x^{3}+343+84 x^{2}+294 x$
Write the degree of the following polynomials
$5$
Factorise
$x^{3}+8 x^{2}+9 x-18$
$12 x^{3}+17 x^{2}+3 x-2$
Factorise the following:
$9 y^{2}-66 y z+121 z^{2}$
Write whether the following statements are True or False. Justify your answer.
$\frac{6 \sqrt{x}+x^{\frac{3}{2}}}{\sqrt{x}}$ is a polynomial, $x \neq 0$
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