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Lelechka [254]
3 years ago
9

Please help I will mark u as the brainliest #emergency

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
5 0

Answer:

23x2+8xy−57y2

Step-by-step explanation:

(5x)(5x)+(5x)(7y)+(−7y)(5x)+(−7y)(7y)+−2x2+8xy+−8y2

=25x2+35xy+−35xy+−49y2+−2x2+8xy+−8y2

Combine Like Terms:

=25x2+35xy+−35xy+−49y2+−2x2+8xy+−8y2

=(25x2+−2x2)+(35xy+−35xy+8xy)+(−49y2+−8y2)

=23x2+8xy+−57y2

Plz mark brainlest :)

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