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Lana71 [14]
2 years ago
12

Multiply: (4n + 4)(5n - 8)

Mathematics
2 answers:
marissa [1.9K]2 years ago
7 0

Answer:

5n^2 - 3n - 8

Step-by-step explanation:

4n.5n - 4n.8 + 4.5n - 4.8

= 20n^2 - 32n + 20n - 32

= 20n^2 - 12n - 32

= 4 ( 5n^2 - 3n - 8 )

= 5n^2 - 3n - 8 [ answer ]

andrezito [222]2 years ago
6 0
20n^2 - 12n - 32 is correct
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If a polygon has an interior angle of 144, what kind of polygon is it? (find the # of sides first
ikadub [295]
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Solving for number of sides
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Source:
http://www.1728.org/polygon.htm

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