Classify the following as linear, quadratic or cubic polynomial
$4 x^{2}-49$
Quadratic Polynomial
Expand the following:
$(-x+2 y-3 z)^{2}$
If $x+2 a$ is a factor of $x^{5}-4 a^{2} x^{3}+2 x+2 a+3,$ find $a$
Factorise
$49 x^{2}-42 x+9$
Without actually calculating the cubes, find the value of $48^{3}-30^{3}-18^{3}$
Expand
$(2 x+5 y)^{2}$
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