Factor
10m^{2}\left(-4m^{2}-1\right)
Evaluate
-40m^{4}-10m^{2}
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10\left(-m^{2}-4m^{4}\right)
Factor out 10.
m^{2}\left(-1-4m^{2}\right)
Consider -m^{2}-4m^{4}. Factor out m^{2}.
10m^{2}\left(-1-4m^{2}\right)
Rewrite the complete factored expression. Polynomial -1-4m^{2} is not factored since it does not have any rational roots.
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