3 years ago

Factoring-16w²+50wz-21z² please help me solve

1 answer:

KIM [24]3 years ago

6 0

$-16w^2+50wz-21z^2=-(16w^2-50wz+21z^2)=\\\\=-(16w^2-8wz-42wz-21z^2)=\\\\-[8w(2w-z)-21z(2w-z)]=-(2w-z)(8w-21z)$

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