Factor
4m^{2}\left(3m^{2}-4\right)
Evaluate
12m^{4}-16m^{2}
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4\left(-4m^{2}+3m^{4}\right)
Factor out 4.
m^{2}\left(-4+3m^{2}\right)
Consider -4m^{2}+3m^{4}. Factor out m^{2}.
4m^{2}\left(-4+3m^{2}\right)
Rewrite the complete factored expression. Polynomial -4+3m^{2} is not factored since it does not have any rational roots.
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