How you factorize this? $abs((4,4,m),(6,m,3),(m+3,3,4))$

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Answer 1 · 2017-04-27T12:16:34

To be comtd........

Let, $D=|(4,4,m),(6,m,3),(m+3,3,4)|,$

$=4|(m,3),(3,4)|-4|(6,3),(m+3,4)|+m|(6,m),(m+3,3)|,$

$=4(4m-9)-4(24-3m-9)+m(18-m^2-3m),$

$=16m-36-96+12m+36+18m-m^3-3m^2,$

$=-96+46m-3m^2-m^3,$

How you factorize this? abs((4,4,m),(6,m,3),(m+3,3,4))abs((4,4,m),(6,m,3),(m+3,3,4))