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81-9p^2
50m^2-8n^2
64y-4y^3
-63mn^2+28m^3
81-9p^2
50m^2-8n^2
64y-4y^3
-63mn^2+28m^3
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Answers & Comments
2(25m² - 4n²) = 2(5m - 2n)(5m + 2n)
4y( 16 - y²) = 4y( 4 - y)(4 + y)
- 7m( 9n² - 4m²) = - 7m( 3n - 2m)(3n + 2m)