Find the sum and choose the correct answer. 5n^3 + 4n^2 - 9 + (-2n^3 + 7n - 5) -3n3 - 4n2 - 7n - 4 3n3 + 4n2 + 7n - 14 3n3 + 4n2 + 7n + 14 3n3 + 4n2 + 7n - 4
5n^3 + 4n^2 - 9 + (-2n^3 + 7n - 5) = 5n^3 - 2n^3 + 4n^2 + 7n - 9 - 5 = 3n^3 + 4n^2 + 7n - 14
Question
Updated 2/18/2016 4:06:27 AM
Edited by Andrew. [2/18/2016 4:06:16 AM], Edited by Andrew. [2/18/2016 4:06:27 AM]
Rating
3
5n^3 + 4n^2 - 9 + (-2n^3 + 7n - 5)
= 5n^3 - 2n^3 + 4n^2 + 7n - 9 - 5
= 3n^3 + 4n^2 + 7n - 14
Confirmed by Andrew. [2/18/2016 4:06:30 AM]

Questions asked by the same visitor
Simplify. [7m + 3n - 9 + 2m] + [n + 3 + m + 3n - 6] 10m + 8n - 12 10m + 7n - 12 6m + 7n - 12 6a + 7b - 15
Question
Updated 2/16/2016 5:50:38 PM
[7m + 3n - 9 + 2m] + [n + 3 + m + 3n - 6]
= (9m + 3n - 9) + (4n + m - 3)
= 9m + m + 3n + 4n - 9 - 3
= 10m + 7n - 12
Confirmed by Andrew. [2/16/2016 10:42:55 PM]
(3.125) + (-3.9) - (2.46)
Weegy: 3-3 = 0 User: Find the product. (m - n)^2 m2 + 2mn + n2 m2 - 2mn + n2 m2 + 2mn + 2n2 (More)
Question
Updated 2/16/2016 10:45:05 PM
(3.125) + (-3.9) - (2.46)
= 3.125 - 3.9 - 2.46
= -0.775 - 2.46
= -3.235
Confirmed by Andrew. [2/16/2016 10:46:10 PM]
(m - n)^2
= (m - n)(m - n)
= m^2 - mn - mn + n^2
= m^2 - 2mn + n^2
Confirmed by Andrew. [2/16/2016 10:47:02 PM]
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