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Simplify: (n - 3)(n + 7) a n^2 + 4n - 21 b n^2 - 4n + 21 c n^2 + 4n - 12 d n^2 - 4n - 12
(n - 3)(n + 7) = n^2 + 7n - 3n - 21 = n^2 + 4n - 21
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Asked 6/4/2013 7:35:42 PM
Updated 3/28/2018 5:56:55 AM
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Edited by Masamune [3/28/2018 5:56:54 AM]
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(n - 3)(n + 7)
= n^2 + 7n - 3n - 21
= n^2 + 4n - 21
Added 3/28/2018 5:56:55 AM
This answer has been confirmed as correct and helpful.
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Evaluate the polynomial for x = -2, and y = 4. 3y2 + 7x - 8 a 22 b 24 c 25 d 26
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Updated 6/9/2014 1:16:07 PM
1 Answer/Comment
3y^2 + 7x - 8, x = -2 and y = 4;

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Added 6/9/2014 1:16:07 PM
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1 Answer/Comment
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Added 5/9/2015 11:21:05 PM
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Expert Answered
Updated 8/1/2014 1:05:35 PM
1 Answer/Comment
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Updated 7/18/2016 4:13:38 PM
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Hi! I am a scientist and I am going to collect data from a volcano today; I am most likely a Geologist.
Added 7/18/2016 4:13:38 PM
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