PDF chapter test TRY NOW

Answer variants:
a−1a−42
a−1a+4a−1a−4
m+1m+5m+1m−5
6[(1+6x)(1−6x)]
m+1m−52
6[1−12x+36x2]
Factorize the following:
 
S.NoExpressionSolution
(i)\(m^2 + \frac{1}{m^2} - 23\)
(ii)\(6 - 216x^2\)
(iii)\(a^2 + \frac{1}{a^2} - 18\)