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Factor polynomial $$ -9x^{3}y^{7}z^{3}-34x^{2}y^{3}z^{7} $$
Answer
$$ -9x^{3}y^{7}z^{3}-34x^{2}y^{3}z^{7} = -x^{2}y^{3}z^{3}(9xy^{4}+34z^{4}) $$
Explanation
Factor out common factor $ \color{blue}{ -x^2y^3z^3 } $:
$$ -9x^3y^7z^3-34x^2y^3z^7 = -x^2y^3z^3 ( 9xy^4+34z^4 ) $$