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Factor polynomial $$ -10mn^{4}p^{2}+18mn^{2}p^{2} $$
Answer
$$ -10mn^{4}p^{2}+18mn^{2}p^{2} = -2mn^{2}p^{2}(5n^{2}-9) $$
Explanation
Factor out common factor $ \color{blue}{ -2mn^2p^2 } $:
$$ -10mn^4p^2+18mn^2p^2 = -2mn^2p^2 ( 5n^2-9 ) $$