Question and answer
Find the sum of (5x3 + 3x2 - 5x + 4) and (8x3 -5x2 + 8x + 9).
Question
Asked 7/27/2016 3:23:41 PM
Updated 7/27/2016 9:21:00 PM
3 Answers/Comments
Flagged by jeifunk [7/27/2016 9:19:26 PM], Edited by jeifunk [7/27/2016 9:21:00 PM], Unflagged by jeifunk [7/27/2016 9:21:00 PM]
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Original conversation
User: Find the sum of (5x3 + 3x2 - 5x + 4) and (8x3 -5x2 + 8x + 9).

Weegy: (5x3 + 3x2 - 5x + 4) + (8x3 -5x2 + 8x + 9) = 13x^3 2x^2 + 3x + 13
jeifunk|Points 74153|

User: Simplify 8 - (-5) - 4(-7).

User: Simplify 2(x - 4) + 7(x + 2).

User: 6x 4 + 15x 3 y 2 + 3x 2 y 3

User: (5x2 - 7)(5x2 + 7)

Weegy: (5x^2 - 7)(5x^2 + 7)

= 25x^4 + 35x^2 - 35x^2 - 49;

= 25x^4 - 49


User: 9x 2 - 18x - 7 ÷ (3x + 1)

Question
Asked 7/27/2016 3:23:41 PM
Updated 7/27/2016 9:21:00 PM
3 Answers/Comments
Flagged by jeifunk [7/27/2016 9:19:26 PM], Edited by jeifunk [7/27/2016 9:21:00 PM], Unflagged by jeifunk [7/27/2016 9:21:00 PM]
New answers
Rating
3
(9x^2 - 18x - 7) ÷ (3x + 1)
= (3x + 1)(3x - 7)/ 3x + 1
= 3 - 7
Added 7/27/2016 9:13:03 PM
This answer has been confirmed as correct and helpful.
3
2(x - 4) + 7(x + 2)
= (2x + 7x) + (-8 + 14)
= 9x + 6
Added 7/27/2016 9:13:53 PM
This answer has been confirmed as correct and helpful.
3
6x^4 + 15x^3 y^2 + 3x^2 y^3 = 15x^3y^2 + 3x^2y^3 + 6x^4
Added 7/27/2016 9:18:54 PM
This answer has been confirmed as correct and helpful.
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How many people in the world speak Spanish?
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Updated 7/20/2016 4:16:10 PM
1 Answer/Comment
427 million people in the world speak Spanish.
Added 7/20/2016 2:43:41 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [7/20/2016 4:16:05 PM]
(3xy - 1) (4xy + 2)
Weegy: (3xy - 1) (4xy + 2) = 12x^2y^2 + 6xy - 4xy - 2 = 12x^2y^2 + 2xy - 2 User: [4 - (3c - 1)][6 - ( 3c - 1)] User: (a - b)(a 2 + ab + b 2) (More)
Question
Updated 7/27/2016 8:55:04 PM
2 Answers/Comments
[4 - (3c - 1)][6 - ( 3c - 1)] = 9c2 - 36c + 35
Added 7/27/2016 8:53:02 PM
This answer has been confirmed as correct and helpful.
(a - b)(a^2 + ab + b^2) = a^3 - b^3
Added 7/27/2016 8:55:04 PM
This answer has been confirmed as correct and helpful.
(3xy - 1) (4xy + 2)
Weegy: (3xy - 1) (4xy + 2) = 12x^2y^2 + 6xy - 4xy - 2 = 12x^2y^2 + 2xy - 2 User: (2x - 3y)(4x - y) Weegy: (2x - 3y)(4x - y) = 8x^2 - 2xy - 12xy + 3y^2 = 8x^2 - 14xy + 3y^2 User: (x + y + 3)(x + y - 4) User: (ab - 9)(ab + 8) Weegy: (ab + 3)(ab - 3) = a^2b^2 - 3ab + 3ab - 9; = a^2b^2 - 9 User: (m 3 n + 8)(m 3 n - 5) Weegy: (n + 8)(n - 2) = n^2 - 2n + 8n - 16; = n^2 + 6n - 16 User: (a + 3)(a - 2) User: (1 - 7x)(1 + 9x) User: (x 2 + 2x - 1)(x 2 + 2x + 5) Weegy: (x^2 + 2x - 1)(x^2 + 2x + 5) = x^4 + 2x^3 + 5x^2 + 2x^3 + 4x^2 + 10x - x^2 - 2x - 5; = x^4 + 4x^3 + 8x^2 + 8x - 5 User: [4 - (3c - 1)][6 - ( 3c - 1)] Weegy: 3-3 = 0 (More)
Question
Updated 7/27/2016 9:01:29 PM
5 Answers/Comments
(x + y + 3)(x + y - 4) = x2 + 2xy + y2 - x - y - 12
Added 7/27/2016 8:58:52 PM
This answer has been confirmed as correct and helpful.
(ab - 9)(ab + 8)
=a^2b^2 + 8ab - 9ab - 72
=a^2b^2 - ab - 72
Added 7/27/2016 8:59:39 PM
This answer has been confirmed as correct and helpful.
(m^3 n + 8)(m^3n - 5)
=m^6n^2 - 5m^3n + 8m^3n - 40
=m^6n^2 + 3m^3n - 40
Added 7/27/2016 9:00:21 PM
This answer has been confirmed as correct and helpful.
(a + 3)(a - 2)
=a^2 - 2a + 3a - 6
=a^2 + a - 6
Added 7/27/2016 9:00:49 PM
This answer has been confirmed as correct and helpful.
(1 - 7x)(1 + 9x)
= 1 + 9x - 7x - 63x^2
= - 63x^2 + 2x + 1
Added 7/27/2016 9:01:25 PM
This answer has been confirmed as correct and helpful.
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