Respuesta:
(5p(2)+7q(6))(5p(2)−7q(6))
=(5p(2)+7q(6))(5p(2)+−42q)
=(5p(2))(5p(2))+(5p(2))(−42q)+(7q(6))(5p(2))+(7q(6))(−42q)
=100p²−420pq+420pq−1764q²
=100p²−1764q²
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Respuesta:
(5p(2)+7q(6))(5p(2)−7q(6))
=(5p(2)+7q(6))(5p(2)+−42q)
=(5p(2))(5p(2))+(5p(2))(−42q)+(7q(6))(5p(2))+(7q(6))(−42q)
=100p²−420pq+420pq−1764q²
=100p²−1764q²