Factor polynomial $$ -y^{6}+343 $$
Answer
$$ -y^{6}+343 = ( -y^{2}+7 )( y^{4}+7y^{2}+49 ) $$
Explanation
To factor $ -y^{6}+343 $ we can use difference of cubes formula:
$$ I^3 - II^3 = (I - II)(I^2 + I \cdot II + II^2) $$After putting $ I = 7 $ and $ II = y^{2} $ , we have:
$$ -y^{6}+343 = ( -y^{2}+7 ) ( y^{4}+7y^{2}+49 ) $$This page was created using
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