Question 665926
Starting with
{{{12n^4 + 17n^2 - 5 = 0}}}
...
(3{{{n^2}}}+5)(4{{{n^2}}}-1)=0
Check with FOIL
{{{12n^4 - 3n^2 + 20n^2 - 5 = 0}}}
...
(3{{{n^2}}}+5)(2n+1)(2n-1)=0
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