Question

factorise the following using identites
$m {}^{2} + \frac{1}{ {m}^{2} } - 23$

Answer 1

Hey!!

$m {}^{2} + \frac{1}{m {}^{2} } - 23 \\ \\ = > \frac{m {}^{4} + 1 - 23m {}^{2} }{m {}^{2} } \\ \\ = > \frac{m {}^{4} - 23m {}^{2} + 1 }{m {}^{2} }$

Hope it helps!