Question

Factor formBx%20%7B%7D%5E%7B2%7D%20-%204%20%7D%20" id="TexFormula1" title=" \frac{6x { { }^{2} - 12x }^{?} }{x {}^{2} - 4 } " alt=" \frac{6x { { }^{2} - 12x }^{?} }{x {}^{2} - 4 } " align="absmiddle" class="latex-formula">

Answer 1

$\dfrac{6x^2-12x}{x^2-4}=\dfrac{6x(x-2)}{x^2-2^2}=\dfrac{6x(x-2)}{(x-2)(x+2)}=\dfrac{6x}{x+2}\\\\Used:\ a^2-b^2=(a-b)(a+b)$